1. What writing skills did you improve while working on your Human Body Research Paper? Explain. 2. What are some concepts that you learned about the human body during this unit that you think are important (not just interesting)? 3. What was the most challenging part of writing your Human Body Research Paper? Why? 4. What aspect of the Human Body Research Paper are you most proud of? Why? | 1. One of the things that I improved on was using my transition words. I also tried working on how not making run on sentences. Kaela, Emily and Nick actually helped me with my clincher sentences and it got better. And I actually improved on instead of fact by fact I made it interesting instead but I still had facts. 2. I actually learned that your circulatory brings oxygen to you cells and I thought it's main purpose was just to your heart just pumping blood. But now I know that it also brings oxygen to our cells. I also didn't know that medulla was another name for a brain stem and it's actually really important so that's some concepts that I learned. Also that Muscles pull and don't push. These are some of the main things I learned. I learned so much that I would have 5 pages worth! Almost My whole Paper I learned! 3. The most challenging part of writing the human body research paper was doing the respiratory system because it had a lot of parts and I tried to make it interesting but it was hard to put it into words. 4. I am most proud of my nervous system because I already know a lot but I actually learned more and since I really loved the nervous system that made it more interesting to learn and it was really fun. |
The human body has six main systems and is a complex machine that is constantly working to keep us alive. Although each system has its own unique jobs to do, they synergize to keep us healthy and active.
The skeletal system is responsible for giving us support, structure, and protection and works together with the muscular system to move our body. Our muscles pull our bones, which allows us to move, jump, and run! The muscular system actually plays an important role in delivering oxygen to our body’s cells. Without the heart, one of our most important muscles, blood wouldn’t be able to travel around our body! Luckily for us, the blood travels through our lungs, where it drops off carbon dioxide and picks up oxygen that our cells are craving. Speaking of craving, did you ever know that the main purpose of our digestive system isn’t just to digest food? It’s job is actually to take nutrients and water out of what we eat and drink and then deliver it to the circulatory system where it gets delivered to the cells in our body. But none of these systems would work without the direction of our nervous system!
Now let’s get right into it with the skeletal system, where you’ll learn how our bones help us move and protect our organs.
The skeletal system has several important jobs to do in our body. It is responsible for creating blood cells, providing our body with support and structure, and enabling us to move. We have several bones that are responsible for protecting our organs like the ribs protect our heart and lungs, and the skull protects our brain! Bones cannot move unless joined together at joints. Ligaments connect our bones together and cartilage prevents them from rubbing together which would be painful! We are so lucky to have strong, powerful, yet moveable bones in our body!
The bones in our body are made up of four distinct layers. Each of these layers has important responsibilities and are vital to our day-to-day life. The outer layer of bone is called compact bone. Compact bone is solid throughout and enables our body to be supported. Compact bone is so dense that surgeon’s need to use a saw to cut through it. The next layer of bone is called spongy bone and it is lightweight and porous, which prevents our bones from getting too heavy, but still be strong. It makes up about 20% of our skeleton, and it’s found mostly in long bones, joints, and in our spine. The center of many bones are filled with a gelatinous substance called bone marrow. Bone marrow is responsible for creating red blood cells and some of our white blood cells. Bone marrow also makes platelets for our circulatory system. In addition, bone marrow stores iron for when our body needs it. We have two different types of bone marrow: yellow and red. We are born with red marrow, but it slowly changes to yellow over time. Finally, the outermost part of bone is covered in periosteum, a thin, fibrous membrane that covers all bones. The membrane is responsible for helping to create new bone in children and does the same when adults sustain an injury. The periosteum is the site at which ligaments, tendons, and muscles attach to bone! It also contains the blood vessels that allow nutrients and oxygen to the get to the bones! Knowing the four layers of bones can help us to understand just how complex our human body really is!
The first part of the joint system is Cartilage. Cartilage is a flexible tissue found in the human body. It is also found in certain animals too! The place that Cartilage is found is in the rib cage, in the ear, and on the nose. Cartilage is not hard as a bone but is is still strong but it is less flexible than a muscle. Now to learn about ligaments. Ligaments connect bones to bones. Ligaments also allow you to move. When your elbow or Knee moves up and down, like a hinge, that is thanks to the Ligaments of your body. Did you know that the word Ligaments, comes from the Latin word ligare that means "to bind tie,". Next, is the Gliding or Sliding Joints of your body. the Gliding or Sliding Joints in your body. A gliding and sliding joint is a common type of synovial joint formed between the bones that meet at a flat area.
As you can see, the skeleton system has many important jobs to do. It allows us to stand straight up, move our body around and protects are most important organs. How ever, the skeletal system can’t move are body by itself. It needs the help of our muscular system as well!
We use are Muscular system from a day-to-day bases. We have many important muscles in our system. Are muscular system helps us to digest food, and they help us to move. Did you know that you need 200-220 muscles to move?!?
The Voluntary muscles are a very important part of your body. Your voluntary muscles help you to move. Your Voluntary muscles are the only ones that you can control. When you walk, run, bike, or eat a sandwich, that is your brain telling your Voluntary muscles to move. Then there is your Skeletal Muscles. The Skeletal Muscles form most of your human body weight. They also are under control of the human will and all the body movements that our Skeletal System does. But the reason that they are called Skeletal Muscles is because they are almost always found attached to the Skeleton and they produce movements in other parts of the Skeletal System. Some examples are the Biceps and the Triceps. There are also the Involuntary Muscles. Involuntary Muscles are any of the muscles that are smooth muscles except for the cardiac muscles. Involuntary Muscles are not under the control of will. There are also your Cardiac Muscles. Your Cardiac Muscles are only found in the Human Heart. They are found nowhere else. The Cardiac Muscles are very, Very, VERY strong and powerful muscles. Just like the Involuntary Muscles, The Cardiac Muscles are not under the human control of wll. The Cardiac Muscles pump the blood by our heart. The reason that they do that is because the heart is forced by the contraction of the Cardiac Muscles. There is also the Smooth Muscles.The Smooth Muscles are typically found in sheets and or layers with one layer in front of the other muscle. Smooth Muscles are also another muscle that you can’t control. Your brain tells your Smooth Muscles to do without you even thinking about it!
Our Muscles help us in a very good way. They help us to smile, to eat, and other important things. When we do this, it makes us stronger. Our Muscles take up 40% of our weight! Our Muscular System is one of the most important Systems in our body.
When you are using your body to the day-to-day basis, our Circulatory system is working. What is our Circulatory System? Why do we need it? We have many Systems in our body but which one is most important?
We have moved onto the Circulatory System. The blood helps to keep certain values of the body in balance. For instance, it makes sure that the right body temperature is maintained. Blood is important because it is what carries the necessary nutrients,water and oxygen to all the cells in our body. It is also really important because blood also contains cells and also for carrying waste away from different parts of our body to our livers and kidneys. They circulate in the blood so that they can be transported to an area where an infection has developed. White blood cells a cellular component of the blood that lacks hemoglobin,and defends the body against infection and disease. Red blood cells are round with a flattish, indented center, like doughnuts without a hole. Red blood cells are made inside your bones, in the bone marrow. They typically live for about 120 days, and then they die. Platelets are a small colorless disk shaped cell fragment without a nucleus, found in large numbers in blood and are involved in clotting. Platelets are the cells that circulate within our blood and bind together when they recognize damaged blood vessels. Plasma is the colorless fluid part of blood in which corpuscles or fat globules are suspended. Plasma cells are a type of white blood cell that produces antibodies. We have finished the first paragraph and will move on to the blood vessels.
Body Paragraph 2: The blood vessels are the part of the circulatory system that transports blood throughout the human body. There are three major types of blood vessels the arteries, which carry the blood away from the heart the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues and the veins, which carry blood from the capillaries back toward the heart. The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body. The artery is a muscular tube lined by smooth tissue and has three layers. Arteries are part of the circulatory system, which delivers oxygen and nutrients to every cell of the body. In the circulatory system, veins are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart. The capillaries any of the fine branching blood vessels that form a network between the arterioles and venules. Capillaries are the smallest of the blood vessels. We have finished the body paragraph two and will move onto the Heart.
Body Paragraph 3: Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives blood from the body and pumps it to the lungs. The heart is a hollow, muscular organ, located in the center of your chest. Roughly the size of a human fist, the heart is the center of your body's circulatory system, and it performs 2 important functions supplying oxygenated blood to your body and helping rid the body of waste products, such as carbon dioxide. The heart has four chambers two atria and two ventricles. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle. The chambers of the heart provide a multiple step pathway for blood to be first sent to the lungs for respiration and then dispensed to the body's cells to keep us alive. The left atrium is one of four chambers in the heart. It receives oxygenated blood from the pulmonary veins. The left atriums primary roles are to act as a vessel for blood returning from the lungs and to act a pump to transport blood to other areas of the heart. The walls of the left atrium are slightly thicker than the walls of the right atrium. The left ventricle is one of four chambers of the heart. It is located in the bottom left portion of the heart below the left atrium, separated by the mitral valve. The thickest of all the chambers. The left lower chamber of the heart that receives blood from the left atrium and pumps it out under high pressure through the aorta to the body. The right atrium is one of the four chambers of the heart. The heart is comprised of two atriums and two ventricles. The right atrium is one of the four hollow chambers of the interior of the heart. It is located in the upper right corner of the heart superior to the right ventricle. The right ventricle is a heart chamber responsible for pumping deoxygenated blood to the lungs. The right ventricle is one of four of the heart's chambers and is located in the lower right portion of the heart below the right atrium and opposite the left ventricle.
Conclusion: We have just finished the Circulatory System. The Circulatory System is one of the most important systems in our body. Now that you have learned all about the Circulatory System you should be able to explain what it does and how it works. You know that the Circulatory System can’t do everything on its own. So it will need the help of the...
In the Respiratory System, there are 3 main parts. The airway, the lungs, and the muscles. We use our body from a day to day basis, But how do we use our Respiratory System?
Air enters the body through either the open mouth or the nose. It travels down the trachea to the lungs, where the oxygen in it passes into the bloodstream. Tiny hairs in the nose trap unwanted particles while a sticky liquid called mucus catches many of the germs before they all can go too far into the respiratory system. Tiny hairs in the nose trap unwanted particles while a sticky liquid called mucus catches many of the germs before they all can go too far into the respiratory system. A flap in the throat that blocks the windpipe when food or liquid is being swallowed. A flap of cartilage at the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe. The hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals. It is an organ in the neck of amphibians, reptiles, and mammals involved in breathing, sound production, and protecting the trachea against food aspiration. It folds membranous tissue that project inward from the sides of the larynx to form a slit across the glottis in the throat, and whose edges vibrate in the airstream to produce the voice.One of two small bands of muscle within the larynx. These muscles vibrate to produce the voice. Inside your voice box are two bands of tissue that form your vocal cords. When you speak or sing, muscles pull these cords together. About half of its 13cm length is inside the chest and the other half is in the neck. The lower end of the trachea divides into two bronchi that carry air into the lungs. We will now move onto the other part of this system to learn more about this system.
Your lungs are part of a group of organs and tissues that all work together to help you breathe. Your lungs make up one of the largest organs in your body, and they work with your respiratory system to allow you to take in fresh air, get rid of stale air. each of the of the lungs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood. Your lungs are organs in your chest that allow your body to take in oxygen from the air. They also help remove carbon dioxide from your body. When a person breathes, air comes in through the nose or mouth and then goes into the trachea. From there, it passes through the bronchial tubes, which are in the lungs. These tubes let air in and out of your lungs, so you can breathe. The bronchial tubes are sometimes referred to as bronchi or airways. A bronchus, also known as a main or primary bronchus, is a passage of airway in the respiratory tract that conducts air into the lungs. There is a right bronchus and a left bronchus. Bronchi are the main passageway into the lungs. When someone takes a breath through his nose or mouth, the air travels into the larynx. The next step is through the trachea, which carries the air to the left and right bronchus. The bronchioles are part of the airway passages in the lungs. They are located at the end of the bronchi, the larger, branching airway passages in the lungs. It is a small airway of the respiratory system extending from the bronchi into the lobes of the lung. An alveolus is an anatomical structure that has the form of a hollow cavity. These alveoli inflate and deflate with inhalation and exhalation. Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
Conclusion: After all this research put into this page of facts I now hope you can explain how the Respiratory System works and why it is so important for the human body, but even though the Respiratory System does a lot in our body it can not do all so it will need the help of the Digestive System.
Another system of ours is the Digestive System. The Digestive System is very important because it helps us get the nutrients that we need. We couldn't use our digestive system without food though!
We will start the first Body Paragraph by leading off with the mouth and what it does. The mouth is the beginning of the digestive tract, and in fact the digestion starts here when taking the first bite of food. Chewing breaks the food into pieces that are more easily digested while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use to help us live our daily lives. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Mechanical digestion is the breaking down of food into smaller particles so that it can be more easily processed by the digestive system. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva. The process begins in the mouth, continues in the stomach and ends when the digested particles move through the small intestine for absorption. The fleshy muscular organ in the mouth of a mammal, used for tasting, licking, swallowing and articulating speech. The tongue is covered with moist, pink tissue called mucosa. Tiny bumps called papillae give the tongue its rough texture. Thousands of taste buds cover the surfaces of the papillae. Bolus, food that has been chewed and mixed in the mouth with saliva. The term bolus applies to this mixture of food and solutions until they are passed into the stomach. The Esophagus, located behind your trachea, the esophagus receives food from your mouth when you swallow. By means of a series of muscular contractions called peristalsis, the esophagus delivers food to your stomach. The peristalsis can be defined as muscular contractions that take place in the digestive tract. These contractions are also very common in organs that link the kidney or to the bladder. This is an involuntary process, and it is very important. The Digestive juices are glands in the stomach lining. The glands in the stomach lining produce stomach acid and an enzyme that digests protein. The pancreas produces a juice containing several enzymes that break down carbohydrates, fats, and proteins in food. They include saliva, gastric juice, pancreatic juice, bile, and intestinal juice. The digestive juices are secreted by different organs, vary widely in chemical composition, and play different roles in the digestive process. The Chyme is acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food. Chyme is the partially digested mass/liquid of food that is forced into the small intestine. It has a low Ph balance that is countered by the production of bile, helping to further digest food. We have finished the first body paragraph and will move onto the second body paragraph by starting on the small Intestine.
The small intestine is a long, highly convoluted tube in the digestive system that absorbs about 90% of the nutrients from the food we eat. It is given the name “small intestine” because it is only 1 inch in diameter, making it less than half the diameter of the large intestine. The small intestine is, however, about twice the length of the large intestine and usually measures about 10 feet in length. The small intestine winds throughout the abdominal cavity inferior to the stomach. Its many folds help it to pack all 10 feet of its length into such a small body cavity. The Villi is a Microscopic finger-like projections that line the inner wall of the small intestine. After food passes from the stomach into the small intestine, nutrients in the food are absorbed into the body through the villi. Every person has millions of villi in his intestines. Finger-like protrusions on the surface of the intestinal lining called villi make this massive surface area possible. Because the proteins, carbohydrates, lipids as well as many vitamins and minerals are absorbed through the small intestine, nutrient uptake would be greatly inhibited without villi. The pancreas is a long flattened gland located deep in the belly. Part of the pancreas is sandwiched between the stomach and the spine. The other part is nestled in the curve of the duodenum. Pancreatic enzymes help break down fats, proteins and carbohydrates. A normally functioning pancreas secretes about 8 cups of pancreatic juice into the duodenum, daily. Digestive enzymes are found in the digestive tracts of animals (including humans). The gallbladder is attached to the liver, is about four inches in size, and is oblong or pear-shaped. The liver is a large, meaty organ that sits on the right side of the belly. Weighing about 3 pounds, the liver is reddish-brown in color and feels rubbery to the touch. Normally you can't feel the liver, because it's protected by the rib cage.The Bile is formed in the liver, where it is principally composed of cholesterol, lecithin, pigments, and salts. While bile is made in the liver, between meals it is stored in the gallbladder. In humans, when we eat, it is excreted into the duodenum, helping to break down fats. The large intestine is the final section of the gastrointestinal tract that performs the vital task of absorbing water and vitamins while converting digested food into feces. Although shorter than the small intestine in length, the large intestine is considerably thicker in diameter, thus giving it it’s name. The large intestine is about 5 feet in length and 2.5 inches in diameter in the living body, but becomes much larger postmortem as the smooth muscle tissue of the intestinal wall relaxes. Its job is to absorb water and salts from the material that has not been ingested as food, and get rid of any waste products left over. By the time food mixed with digestive juices reaches your large intestine, most digestion and absorption has already taken place. The anus is a canal at the end of the digestive tract through which feces is expelled. It is about five inches long and is an extension of the rectum. It is only open during the expulsion of feces because it is usually kept closed by sphincter muscles, which can be relaxed at will.
We have finished learning about the Digestive System and how it works so now we will move on to the Nervous system. After all our Digestive System can’t do all the work in our body so it will need the help of the nervous system to do some work as well.
When we get scared, we either fight, or flight. When we do one of those things, that is our Nervous System working. When we fight our reflex’s know that we are getting attacked. Sometimes we either stand still, or know that we are getting attacked and punch.
So now we will start learning some facts about the Nervous System and see how this system works and functions together. The brain is an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity. It receives input from the sensory organs and sends output to the muscles. The Cerebrum is as the largest portion of the brain, the cerebrum weighs about 2 pounds in a normal adult. The cerebrum is around most of the structures of the brain and contains billions of neurons that control everything that a person does, thinks, and senses. The cerebellum is located at the base of the brain, just above the brainstem, where the spinal cord meets the brain, and is made of two hemispheres. The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain. The medulla is easily the most important part of the brain. It's functions are involuntary, or done without thought. As a part of the brain stem, it also helps transfer neural messages from the brain to the spinal cord. We have finished the first Body Paragraph and now that we know what the brain does we will now talk about what the nerves do.
We will now start talking about nerves to finish up the whole Human Body paper. Nerves are bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. The fibrous portions of a nerve are covered by a sheath called myelin or a membrane called neurilemma. Sensory nerves are vessels of the peripheral nervous system that carry signals toward the brain in response to stimuli. Sensory neurons are nerve cells that transmit sensory information (sight, sound, feeling, etc.). A motor nerve is a nerve which carries impulses from the central nervous system which trigger muscles to contract. These nerves are made up of motor neurons, neurons which specialize in carrying signals which will result in muscle contraction. The spinal cord is a long, fragile tubelike structure that begins at the end of the brain stem and continues down almost to the bottom of the spine. The spinal cord consists of nerves that carry incoming and outgoing messages between the brain and the rest of the body. Like the brain, the spinal cord is covered by three layers of tissue. The spinal cord and meninges are contained in the spinal canal, which runs through the center of the spine. Neurons are cells that send and receive electrochemical signals to and from the brain and nervous system. A synapse is a connection which allows for the transmission of nerve impulses. Synapses can be found at the points where nerve cells meet other nerve cells. Synapses can carry a wide assortment of types of information, ranging from a message from the brain to do something to a signal from an extremity to alert the brain to an ongoing situation. Dendrites are treelike extensions at the beginning of a neuron that help increase the surface area of the cell body. Dendrites are an important part of nerve cells. The dendrites are responsible for picking up information from neighboring neurons and transmitting this information to the cell body. The axon is the elongated fiber that extends from the cell body to the terminal endings and transmits the neural signal. The larger the axon, the faster it transmits information. Some axons are tance called myelin that acts as an insulator covered with a fatty substance.
So in conclusion you should now be able to explain what and how the Nervous System works. So I hope you will now understand how important the Nervous System is to our human body and why we have, and what it does to let us live.
Conclusion to the Human Body Research Paper:
As you can see, the human body is a complicated, unique machine that does so many important things. Not only does it help you live, but it also helps you move, think, breathe, feel, and communicate! Can you possibly imagine what life would be like if we were missing even one of these important systems? If not, maybe a few of these valuable concepts will help you understand better:
Now you have read all about our human body and how it works 24/7 for us. I hope that you learned a lot and that you can apply some of this information to your everyday life.
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The skeletal system is responsible for giving us support, structure, and protection and works together with the muscular system to move our body. Our muscles pull our bones, which allows us to move, jump, and run! The muscular system actually plays an important role in delivering oxygen to our body’s cells. Without the heart, one of our most important muscles, blood wouldn’t be able to travel around our body! Luckily for us, the blood travels through our lungs, where it drops off carbon dioxide and picks up oxygen that our cells are craving. Speaking of craving, did you ever know that the main purpose of our digestive system isn’t just to digest food? It’s job is actually to take nutrients and water out of what we eat and drink and then deliver it to the circulatory system where it gets delivered to the cells in our body. But none of these systems would work without the direction of our nervous system!
Now let’s get right into it with the skeletal system, where you’ll learn how our bones help us move and protect our organs.
The skeletal system has several important jobs to do in our body. It is responsible for creating blood cells, providing our body with support and structure, and enabling us to move. We have several bones that are responsible for protecting our organs like the ribs protect our heart and lungs, and the skull protects our brain! Bones cannot move unless joined together at joints. Ligaments connect our bones together and cartilage prevents them from rubbing together which would be painful! We are so lucky to have strong, powerful, yet moveable bones in our body!
The bones in our body are made up of four distinct layers. Each of these layers has important responsibilities and are vital to our day-to-day life. The outer layer of bone is called compact bone. Compact bone is solid throughout and enables our body to be supported. Compact bone is so dense that surgeon’s need to use a saw to cut through it. The next layer of bone is called spongy bone and it is lightweight and porous, which prevents our bones from getting too heavy, but still be strong. It makes up about 20% of our skeleton, and it’s found mostly in long bones, joints, and in our spine. The center of many bones are filled with a gelatinous substance called bone marrow. Bone marrow is responsible for creating red blood cells and some of our white blood cells. Bone marrow also makes platelets for our circulatory system. In addition, bone marrow stores iron for when our body needs it. We have two different types of bone marrow: yellow and red. We are born with red marrow, but it slowly changes to yellow over time. Finally, the outermost part of bone is covered in periosteum, a thin, fibrous membrane that covers all bones. The membrane is responsible for helping to create new bone in children and does the same when adults sustain an injury. The periosteum is the site at which ligaments, tendons, and muscles attach to bone! It also contains the blood vessels that allow nutrients and oxygen to the get to the bones! Knowing the four layers of bones can help us to understand just how complex our human body really is!
The first part of the joint system is Cartilage. Cartilage is a flexible tissue found in the human body. It is also found in certain animals too! The place that Cartilage is found is in the rib cage, in the ear, and on the nose. Cartilage is not hard as a bone but is is still strong but it is less flexible than a muscle. Now to learn about ligaments. Ligaments connect bones to bones. Ligaments also allow you to move. When your elbow or Knee moves up and down, like a hinge, that is thanks to the Ligaments of your body. Did you know that the word Ligaments, comes from the Latin word ligare that means "to bind tie,". Next, is the Gliding or Sliding Joints of your body. the Gliding or Sliding Joints in your body. A gliding and sliding joint is a common type of synovial joint formed between the bones that meet at a flat area.
As you can see, the skeleton system has many important jobs to do. It allows us to stand straight up, move our body around and protects are most important organs. How ever, the skeletal system can’t move are body by itself. It needs the help of our muscular system as well!
We use are Muscular system from a day-to-day bases. We have many important muscles in our system. Are muscular system helps us to digest food, and they help us to move. Did you know that you need 200-220 muscles to move?!?
The Voluntary muscles are a very important part of your body. Your voluntary muscles help you to move. Your Voluntary muscles are the only ones that you can control. When you walk, run, bike, or eat a sandwich, that is your brain telling your Voluntary muscles to move. Then there is your Skeletal Muscles. The Skeletal Muscles form most of your human body weight. They also are under control of the human will and all the body movements that our Skeletal System does. But the reason that they are called Skeletal Muscles is because they are almost always found attached to the Skeleton and they produce movements in other parts of the Skeletal System. Some examples are the Biceps and the Triceps. There are also the Involuntary Muscles. Involuntary Muscles are any of the muscles that are smooth muscles except for the cardiac muscles. Involuntary Muscles are not under the control of will. There are also your Cardiac Muscles. Your Cardiac Muscles are only found in the Human Heart. They are found nowhere else. The Cardiac Muscles are very, Very, VERY strong and powerful muscles. Just like the Involuntary Muscles, The Cardiac Muscles are not under the human control of wll. The Cardiac Muscles pump the blood by our heart. The reason that they do that is because the heart is forced by the contraction of the Cardiac Muscles. There is also the Smooth Muscles.The Smooth Muscles are typically found in sheets and or layers with one layer in front of the other muscle. Smooth Muscles are also another muscle that you can’t control. Your brain tells your Smooth Muscles to do without you even thinking about it!
Our Muscles help us in a very good way. They help us to smile, to eat, and other important things. When we do this, it makes us stronger. Our Muscles take up 40% of our weight! Our Muscular System is one of the most important Systems in our body.
When you are using your body to the day-to-day basis, our Circulatory system is working. What is our Circulatory System? Why do we need it? We have many Systems in our body but which one is most important?
We have moved onto the Circulatory System. The blood helps to keep certain values of the body in balance. For instance, it makes sure that the right body temperature is maintained. Blood is important because it is what carries the necessary nutrients,water and oxygen to all the cells in our body. It is also really important because blood also contains cells and also for carrying waste away from different parts of our body to our livers and kidneys. They circulate in the blood so that they can be transported to an area where an infection has developed. White blood cells a cellular component of the blood that lacks hemoglobin,and defends the body against infection and disease. Red blood cells are round with a flattish, indented center, like doughnuts without a hole. Red blood cells are made inside your bones, in the bone marrow. They typically live for about 120 days, and then they die. Platelets are a small colorless disk shaped cell fragment without a nucleus, found in large numbers in blood and are involved in clotting. Platelets are the cells that circulate within our blood and bind together when they recognize damaged blood vessels. Plasma is the colorless fluid part of blood in which corpuscles or fat globules are suspended. Plasma cells are a type of white blood cell that produces antibodies. We have finished the first paragraph and will move on to the blood vessels.
Body Paragraph 2: The blood vessels are the part of the circulatory system that transports blood throughout the human body. There are three major types of blood vessels the arteries, which carry the blood away from the heart the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues and the veins, which carry blood from the capillaries back toward the heart. The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body. The artery is a muscular tube lined by smooth tissue and has three layers. Arteries are part of the circulatory system, which delivers oxygen and nutrients to every cell of the body. In the circulatory system, veins are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart. The capillaries any of the fine branching blood vessels that form a network between the arterioles and venules. Capillaries are the smallest of the blood vessels. We have finished the body paragraph two and will move onto the Heart.
Body Paragraph 3: Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives blood from the body and pumps it to the lungs. The heart is a hollow, muscular organ, located in the center of your chest. Roughly the size of a human fist, the heart is the center of your body's circulatory system, and it performs 2 important functions supplying oxygenated blood to your body and helping rid the body of waste products, such as carbon dioxide. The heart has four chambers two atria and two ventricles. The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle. The chambers of the heart provide a multiple step pathway for blood to be first sent to the lungs for respiration and then dispensed to the body's cells to keep us alive. The left atrium is one of four chambers in the heart. It receives oxygenated blood from the pulmonary veins. The left atriums primary roles are to act as a vessel for blood returning from the lungs and to act a pump to transport blood to other areas of the heart. The walls of the left atrium are slightly thicker than the walls of the right atrium. The left ventricle is one of four chambers of the heart. It is located in the bottom left portion of the heart below the left atrium, separated by the mitral valve. The thickest of all the chambers. The left lower chamber of the heart that receives blood from the left atrium and pumps it out under high pressure through the aorta to the body. The right atrium is one of the four chambers of the heart. The heart is comprised of two atriums and two ventricles. The right atrium is one of the four hollow chambers of the interior of the heart. It is located in the upper right corner of the heart superior to the right ventricle. The right ventricle is a heart chamber responsible for pumping deoxygenated blood to the lungs. The right ventricle is one of four of the heart's chambers and is located in the lower right portion of the heart below the right atrium and opposite the left ventricle.
Conclusion: We have just finished the Circulatory System. The Circulatory System is one of the most important systems in our body. Now that you have learned all about the Circulatory System you should be able to explain what it does and how it works. You know that the Circulatory System can’t do everything on its own. So it will need the help of the...
In the Respiratory System, there are 3 main parts. The airway, the lungs, and the muscles. We use our body from a day to day basis, But how do we use our Respiratory System?
Air enters the body through either the open mouth or the nose. It travels down the trachea to the lungs, where the oxygen in it passes into the bloodstream. Tiny hairs in the nose trap unwanted particles while a sticky liquid called mucus catches many of the germs before they all can go too far into the respiratory system. Tiny hairs in the nose trap unwanted particles while a sticky liquid called mucus catches many of the germs before they all can go too far into the respiratory system. A flap in the throat that blocks the windpipe when food or liquid is being swallowed. A flap of cartilage at the root of the tongue, which is depressed during swallowing to cover the opening of the windpipe. The hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals. It is an organ in the neck of amphibians, reptiles, and mammals involved in breathing, sound production, and protecting the trachea against food aspiration. It folds membranous tissue that project inward from the sides of the larynx to form a slit across the glottis in the throat, and whose edges vibrate in the airstream to produce the voice.One of two small bands of muscle within the larynx. These muscles vibrate to produce the voice. Inside your voice box are two bands of tissue that form your vocal cords. When you speak or sing, muscles pull these cords together. About half of its 13cm length is inside the chest and the other half is in the neck. The lower end of the trachea divides into two bronchi that carry air into the lungs. We will now move onto the other part of this system to learn more about this system.
Your lungs are part of a group of organs and tissues that all work together to help you breathe. Your lungs make up one of the largest organs in your body, and they work with your respiratory system to allow you to take in fresh air, get rid of stale air. each of the of the lungs situated within the rib cage, consisting of elastic sacs with branching passages into which air is drawn, so that oxygen can pass into the blood. Your lungs are organs in your chest that allow your body to take in oxygen from the air. They also help remove carbon dioxide from your body. When a person breathes, air comes in through the nose or mouth and then goes into the trachea. From there, it passes through the bronchial tubes, which are in the lungs. These tubes let air in and out of your lungs, so you can breathe. The bronchial tubes are sometimes referred to as bronchi or airways. A bronchus, also known as a main or primary bronchus, is a passage of airway in the respiratory tract that conducts air into the lungs. There is a right bronchus and a left bronchus. Bronchi are the main passageway into the lungs. When someone takes a breath through his nose or mouth, the air travels into the larynx. The next step is through the trachea, which carries the air to the left and right bronchus. The bronchioles are part of the airway passages in the lungs. They are located at the end of the bronchi, the larger, branching airway passages in the lungs. It is a small airway of the respiratory system extending from the bronchi into the lobes of the lung. An alveolus is an anatomical structure that has the form of a hollow cavity. These alveoli inflate and deflate with inhalation and exhalation. Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
Conclusion: After all this research put into this page of facts I now hope you can explain how the Respiratory System works and why it is so important for the human body, but even though the Respiratory System does a lot in our body it can not do all so it will need the help of the Digestive System.
Another system of ours is the Digestive System. The Digestive System is very important because it helps us get the nutrients that we need. We couldn't use our digestive system without food though!
We will start the first Body Paragraph by leading off with the mouth and what it does. The mouth is the beginning of the digestive tract, and in fact the digestion starts here when taking the first bite of food. Chewing breaks the food into pieces that are more easily digested while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use to help us live our daily lives. Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is chewed. Mechanical digestion is the breaking down of food into smaller particles so that it can be more easily processed by the digestive system. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva. The process begins in the mouth, continues in the stomach and ends when the digested particles move through the small intestine for absorption. The fleshy muscular organ in the mouth of a mammal, used for tasting, licking, swallowing and articulating speech. The tongue is covered with moist, pink tissue called mucosa. Tiny bumps called papillae give the tongue its rough texture. Thousands of taste buds cover the surfaces of the papillae. Bolus, food that has been chewed and mixed in the mouth with saliva. The term bolus applies to this mixture of food and solutions until they are passed into the stomach. The Esophagus, located behind your trachea, the esophagus receives food from your mouth when you swallow. By means of a series of muscular contractions called peristalsis, the esophagus delivers food to your stomach. The peristalsis can be defined as muscular contractions that take place in the digestive tract. These contractions are also very common in organs that link the kidney or to the bladder. This is an involuntary process, and it is very important. The Digestive juices are glands in the stomach lining. The glands in the stomach lining produce stomach acid and an enzyme that digests protein. The pancreas produces a juice containing several enzymes that break down carbohydrates, fats, and proteins in food. They include saliva, gastric juice, pancreatic juice, bile, and intestinal juice. The digestive juices are secreted by different organs, vary widely in chemical composition, and play different roles in the digestive process. The Chyme is acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food. Chyme is the partially digested mass/liquid of food that is forced into the small intestine. It has a low Ph balance that is countered by the production of bile, helping to further digest food. We have finished the first body paragraph and will move onto the second body paragraph by starting on the small Intestine.
The small intestine is a long, highly convoluted tube in the digestive system that absorbs about 90% of the nutrients from the food we eat. It is given the name “small intestine” because it is only 1 inch in diameter, making it less than half the diameter of the large intestine. The small intestine is, however, about twice the length of the large intestine and usually measures about 10 feet in length. The small intestine winds throughout the abdominal cavity inferior to the stomach. Its many folds help it to pack all 10 feet of its length into such a small body cavity. The Villi is a Microscopic finger-like projections that line the inner wall of the small intestine. After food passes from the stomach into the small intestine, nutrients in the food are absorbed into the body through the villi. Every person has millions of villi in his intestines. Finger-like protrusions on the surface of the intestinal lining called villi make this massive surface area possible. Because the proteins, carbohydrates, lipids as well as many vitamins and minerals are absorbed through the small intestine, nutrient uptake would be greatly inhibited without villi. The pancreas is a long flattened gland located deep in the belly. Part of the pancreas is sandwiched between the stomach and the spine. The other part is nestled in the curve of the duodenum. Pancreatic enzymes help break down fats, proteins and carbohydrates. A normally functioning pancreas secretes about 8 cups of pancreatic juice into the duodenum, daily. Digestive enzymes are found in the digestive tracts of animals (including humans). The gallbladder is attached to the liver, is about four inches in size, and is oblong or pear-shaped. The liver is a large, meaty organ that sits on the right side of the belly. Weighing about 3 pounds, the liver is reddish-brown in color and feels rubbery to the touch. Normally you can't feel the liver, because it's protected by the rib cage.The Bile is formed in the liver, where it is principally composed of cholesterol, lecithin, pigments, and salts. While bile is made in the liver, between meals it is stored in the gallbladder. In humans, when we eat, it is excreted into the duodenum, helping to break down fats. The large intestine is the final section of the gastrointestinal tract that performs the vital task of absorbing water and vitamins while converting digested food into feces. Although shorter than the small intestine in length, the large intestine is considerably thicker in diameter, thus giving it it’s name. The large intestine is about 5 feet in length and 2.5 inches in diameter in the living body, but becomes much larger postmortem as the smooth muscle tissue of the intestinal wall relaxes. Its job is to absorb water and salts from the material that has not been ingested as food, and get rid of any waste products left over. By the time food mixed with digestive juices reaches your large intestine, most digestion and absorption has already taken place. The anus is a canal at the end of the digestive tract through which feces is expelled. It is about five inches long and is an extension of the rectum. It is only open during the expulsion of feces because it is usually kept closed by sphincter muscles, which can be relaxed at will.
We have finished learning about the Digestive System and how it works so now we will move on to the Nervous system. After all our Digestive System can’t do all the work in our body so it will need the help of the nervous system to do some work as well.
When we get scared, we either fight, or flight. When we do one of those things, that is our Nervous System working. When we fight our reflex’s know that we are getting attacked. Sometimes we either stand still, or know that we are getting attacked and punch.
So now we will start learning some facts about the Nervous System and see how this system works and functions together. The brain is an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity. It receives input from the sensory organs and sends output to the muscles. The Cerebrum is as the largest portion of the brain, the cerebrum weighs about 2 pounds in a normal adult. The cerebrum is around most of the structures of the brain and contains billions of neurons that control everything that a person does, thinks, and senses. The cerebellum is located at the base of the brain, just above the brainstem, where the spinal cord meets the brain, and is made of two hemispheres. The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain. The medulla is easily the most important part of the brain. It's functions are involuntary, or done without thought. As a part of the brain stem, it also helps transfer neural messages from the brain to the spinal cord. We have finished the first Body Paragraph and now that we know what the brain does we will now talk about what the nerves do.
We will now start talking about nerves to finish up the whole Human Body paper. Nerves are bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. The fibrous portions of a nerve are covered by a sheath called myelin or a membrane called neurilemma. Sensory nerves are vessels of the peripheral nervous system that carry signals toward the brain in response to stimuli. Sensory neurons are nerve cells that transmit sensory information (sight, sound, feeling, etc.). A motor nerve is a nerve which carries impulses from the central nervous system which trigger muscles to contract. These nerves are made up of motor neurons, neurons which specialize in carrying signals which will result in muscle contraction. The spinal cord is a long, fragile tubelike structure that begins at the end of the brain stem and continues down almost to the bottom of the spine. The spinal cord consists of nerves that carry incoming and outgoing messages between the brain and the rest of the body. Like the brain, the spinal cord is covered by three layers of tissue. The spinal cord and meninges are contained in the spinal canal, which runs through the center of the spine. Neurons are cells that send and receive electrochemical signals to and from the brain and nervous system. A synapse is a connection which allows for the transmission of nerve impulses. Synapses can be found at the points where nerve cells meet other nerve cells. Synapses can carry a wide assortment of types of information, ranging from a message from the brain to do something to a signal from an extremity to alert the brain to an ongoing situation. Dendrites are treelike extensions at the beginning of a neuron that help increase the surface area of the cell body. Dendrites are an important part of nerve cells. The dendrites are responsible for picking up information from neighboring neurons and transmitting this information to the cell body. The axon is the elongated fiber that extends from the cell body to the terminal endings and transmits the neural signal. The larger the axon, the faster it transmits information. Some axons are tance called myelin that acts as an insulator covered with a fatty substance.
So in conclusion you should now be able to explain what and how the Nervous System works. So I hope you will now understand how important the Nervous System is to our human body and why we have, and what it does to let us live.
Conclusion to the Human Body Research Paper:
As you can see, the human body is a complicated, unique machine that does so many important things. Not only does it help you live, but it also helps you move, think, breathe, feel, and communicate! Can you possibly imagine what life would be like if we were missing even one of these important systems? If not, maybe a few of these valuable concepts will help you understand better:
- The bones in our body support and protect, while our muscles pull but never push!
- In addition, our blood delivers oxygen and nutrients to our cells, while the alveoli in our lungs exchange carbon dioxide for oxygen.
- Finally, our digestive system is responsible for extracting important nutrients and water from what we eat and drink, but we’d never be able to do any of these things without our amazing nervous system!
Now you have read all about our human body and how it works 24/7 for us. I hope that you learned a lot and that you can apply some of this information to your everyday life.
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