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. The writing skills I think I improved were writing about realistic fiction and putting complicated things into my own words. Some of the information I found on webstes were confusing, but I put them in my own words. 2. I learned how some of our body systems work. For example, I learned about the skeletal system, the muscular system, etc. I think that all of these systems are important because they each have very important rolls in our body. 3. I think that the most challenging part of the research paper was listing what each of the parts of our body do. Some of it I found a little confusing, so I had to work hard putting that into the paper. 4. The aspect I am most proud of in my Human Body Research Paper, is that I took complicated things, and turned them into something that is more understanding. Sometimes, I would come across a part of the body that was confusing, but I would put it in my research paper in a good way. This is good, because know if someone looks at the paper, they will understand it better then they would have if it was confusing. |
Introduction To Human Body Research Paper:
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.
Skeletal System:
Introduction:
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!
Body Paragraph 1:
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!
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Our body has six layers of joints and they are very important. The first joint is the cartilage. The cartilage in the human body and animals. It is a flexible connective tissue that cushions your bones so they don’t scrap each other. It is in a lot of parts in your body. It also serves a purpose of holding open tubes in the body. There are no blood vessels in cartilage. The next joint are the ligaments. They can connect bone to bone without touching so there are no injuries. They are stretchy so they can let your bones stretch out a little further then you would be able to. It helps you to stay stable. There are no blood vessels in ligaments like the cartilage. They also connect your muscles together. Next, there are gliding or sliding joints. These joints are formed between bone and allow bone to glide past one another. They let the bone glide past each other upward, downward, right, left, or diagonally. Next is the hinge joint and they can do cool things too. The hinge joint only goes up and down like a hinge on a door. It is on the ankle, the knee, and the elbow. It can also can flex to 180 degrees when normally flexed all the way. Next, is the pivot joint, which can rotate only. For example, we have them on our arms and legs. They are also used for twisting like on our waist or our neck. Finally, there are the ball and socket joints which is a ball shape socket. It can move in almost any rotation. It enables our bone to move in many planes. And those are the stuff in our bones. It’s really cool!
Conclusion:
As you can see, the Skeletal system has many important jobs to do. It allows us to stand straight up, move our body around, and to protect our most important organs. However, the Skeletal system can’t move our body by itself. I needs the help of our Muscular system as well.
Muscular System:
Introduction:
The muscular system is a very important part of your body. Our body is made up of a bunch of different kinds of muscles. There are voluntary muscles, and involuntary muscles. Both of them are opposite, but both in the muscular system. Read more to find out what they can do!
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Our body has two different kinds of muscles that are very different. The voluntary muscles are the kinds of muscles you can control. Voluntary muscles are Skeletal muscles, which are tendons, biceps, and triceps. Tendons are soft tissues that connect the muscles to bone or the eyeball. A tendon is similar to a ligament because a ligament jones one bone to another bone. A biceps is a muscle that allows you to bend your arm at your elbow, while the triceps relaxes. The biceps shortens to make this work. Then, the biceps relaxes, and the triceps pulls back down, to straighten your elbow. The triceps shortens to make this happen. The biceps is composed with two heads while the triceps is composed with three heads. All of these muscles you can control. That is why they are voluntary muscles.
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Next is the involuntary muscle. An involuntary muscle is which you can’t control. Again, the involuntary muscle has many different kinds of muscles in it but are all considered an involuntary muscle. One of the involuntary muscles is the cardiac muscle. The cardiac muscle is a heart muscle, found at the heart. It is found at the walls and the foundation of the heart. The cardiac muscle pumps the heart in which you can’t control. That is why it is an involuntary muscle. In addition, smooth muscles are also involuntary muscles. It is responsible for the contractility of the hollow organs, like blood vessels. A smooth muscle can be found in the trachea, or in bladder. When we eat food, we break it up into little bits. These are called nutrients. It is absorbed by the body, which is why it take hours to digest it. We can’t control these things, except for eating food. That is why these are involuntary muscles.
Conclusion:
So you have learned that voluntary muscles you can control, and that you can’t control involuntary muscles. There are many more muscles, but they are always considered a voluntary muscle, or an involuntary muscle. The Circulatory system is a very important system to. Without it we wouldn’t be the same!
Circulatory System:
Introduction:
You will learn about another fascinating part of our body in our Circulatory System. This system includes blood, blood vessels, and our heart. There are many different parts in those three categories, but those are the main three. Read more to find out what these parts in our body can do!
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A very important thing in our body is blood. We have different kinds of blood cells. For example, we have red blood cells and white blood cells. The white blood cells fight of the germs in our body. If you have an infection, you produce more white blood cells to help fight them off. Next we have the red blood cells. The red blood cells carry oxygen and carbon dioxide. They can pick up the oxygen and transport it to other cells. After that, the cells pick up the carbon dioxide and gives it to the lungs so then it comes out of our body when we breathe out. There are about 5,000,000 red blood cells in one drop of blood. Some other things in our body are platelets and plasma. Platelets are blood cells that help you stop bleeding. When we cut ourselves, blood leaks out, but The platelets get sticky, and eventually, more come, and they plug the cut up all together. Then they seal the cut. This is called a scab. Next is the plasma. The plasma is the liquid in the blood. It carries the blood cells throughout your body. Plasma is made of liver, and is the color of pale yellow. It helps replace lost blood fluids and other things we need in our body.
Body Paragraph 2:
In this paragraph, you will learn about blood vessels. First are the arteries. Arteries are tubes that blood flows through. It comes from the heart, and goes in any other place in the body. After the blood does what it needs to do in the body, it returns back to the heart. But there are also veins. Veins are also a very important part of the body too. Veins are blood vessels that carry blood to the heart. Most of the veins carry deoxygenated blood to the heart from tissues. Capillaries are super cool too! The capillaries are blood vessels that pass blood from arteries to veins. This is how they switch off. They are very small, just enough to get blood from arteries to veins. Their walls are very thin so the blood can get passed them without leaking out. Sometimes, they are able to profuse tissues in the body with oxygen and nutrients, that are supplied by the blood. Those are the blood cells in our body!
Body Paragraph 3:
Now you will learn about the heart. It has many cool things that provides it to work. They are the four chambers. The four chambers include the Left Atrium, the Left Ventricle, the Right Atrium, and the Right Ventricle. The Left Atrium fulfills functions such as, atrial kick for the left of the heart, influences the rate of the heart, and has endocrine qualities. Next is the Left Ventricle. The Left Ventricle is the biggest chamber of the heart. It occupies the hearts apex. It can pump the rich-blood to the body. It gets it from the Left Atrium. Now we move on to the Right Atrium. The Right Atrium can affect the heart rate on how fast or slow it is beating. It receives oxygen and poor blood and sends it to Right Ventricle. The Right Ventricle ejects the blood from the pulmonic valve, to the pulmonary arteries. It also pumps the poor blood to the lungs. That is what our heart does!
Conclusion:
So now you have learned about the Circulatory system. A very important system that helps our body a lot. Next, you will learn about the Respiratory system. It is another very important part of our body and we wouldn’t be the same without it. Have fun learning about it!
Respiratory System:
Introduction:
You will learn about how the Respiratory system works. There are many parts that will all be explained in the two body paragraphs. You will learn about how air enters the body, and how air moves in the lungs. Read more to find out how that works!
Body Paragraph 1:
Something very important and very cool is when air enters our body. It is probably more complicated than you think though. There are parts included like your nose, mouth, nasal passage, epiglottis, larynx, vocal cords, voice box, and trachea. Your nose and mouth breaths in the air, where it gets wet and warms up. It travels through your voice box and goes down your windpipe. The windpipe splits into two bronchial tubes that go down to your lungs. The nasal passage is a very hollow space in your nose and skull that is filled with hair and mucus, so that makes the air wet and warm and filter the air when it enters the lungs. The epiglottis is a flap in the throat that blocks the windpipe when either liquid or food is going to be swallowed. It is also, a flap made of cartilage at the root of your tongue. Next is the larynx. The larynx is also known as the voice box and is a funnel-shaped organ in the throat. It is a hollow muscular organ that forms an air passage to the lungs and is holding the vocal cords in humans and other mammals. The vocal cords are in the larynx that vibrate air as it passes air and it creates sound. This is how we talk. They can be found above the trachea and below the epiglottis and also help protect from some accidental inhalation of either food, saliva, or mucus. The voice box is made up of cartilage, connective tissue, mucous membrane, muscle, and is located in the upper front of the neck. The voice box allows us to speak. We have vocal cords within our larynx that allows us to do so. It has functions that keep the airway open so food doesn’t pass through the trachea. The trachea is also called the windpipe is a tube that connects the nose and the mouth to the lungs. It is important, because that is what the air goes through to get through the lungs. If we didn’t have them, we wouldn’t be able to breathe. It is comprised with cartilage and ligaments and is located in the front of the neck. So, that is how air enters our body. Now see how it moves in the lungs!
Body Paragraph 2:
Now you will learn about how air moves in the lungs. Well, lungs are a super important part of our body. The lungs provide our body with all the oxygen it needs. Over the course of a lifetime, you might use your lungs to breathe over a billion times. The air flows into the lungs through the windpipe. Next is the bronchial tube. The bronchial tube is a part of the respiratory tree. It is a structure that allows you to exchange air in your lungs. We breath rich or fresh air, but when we breathe out, we give poor or weak levels of oxygen. The bronchial tubes are what connect the lungs to the trachea. Next is the bronchi (plural for bronchus). A bronchus is one of the larger tubes in our body. It leads from the trachea to the lungs. There is one large bronchus tube that branches out to the smaller bronchi in the lungs. Bronchi carry air in and out of the lungs. Now to the bronchioles. The bronchioles is part of the airway that is passaged in the lungs. They can control air distribution and the airflow resistance in the lungs. They are located at the end of the bronchi. Now is the alveoli (plural for alveolus). It is a tiny air sac that are formed at the tip of the lungs. The function of the alveoli is the exchange of carbon dioxide. The exchange of gases is a process that allows an organism to exchange waste gases for gases it needs in order to function. That is how air moves in our lungs!
Conclusion:
So now you know how air enters the body and moves in the lungs. That is one of the most important parts of our body. But that is not all. Read more and find out how the Digestive system works!
Digestive System:
Introduction:
Today, you will learn about our digestive system. Our digestive system is another very important part of our body. The main purpose is to keep our body stored with energy, and get enough nutrients in our body. It is a very cool, and important system.
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The Digestive system is how we get nutrients and water to our body so we stay healthy and active. If we didn’t have it, we wouldn’t have enough energy to live. It is a really important part of our body. First is our mouth. Our mouth is the very beginning of the digestive system and is what we use to put food or water in our body. We break down our food into little pieces using our teeth. Our teeth is what we use to break up our food so we can swallow it. We break the food up into little chunks using mechanical actions. When we eat and chew up food, it is also called mechanical digestion. Saliva is also a part of the digestive system. When we see food, we start getting signals from our brain that tells us that we want the food. When that happens, we get saliva in our mouth. This is called chemical digestion. Next is the tongue. The tongue is filled with little tiny taste buds. We have four different kinds of taste buds, salty, sweet, sour, and bitter. This is how we taste our food in the digestive system. These taste buds give us the flavor of what we are eating. A bolus happens when we swallow. It is chewed up food. The next part of our digestive system is the esophagus. The esophagus is a part of our body that leads from the mouth to the stomach. It is a muscular passageway that carries the food we eat, and the water we drink down to enter our stomach. Next, we have peristalsis. Peristalsis is what pushes down the food and waste that we eat. Sometimes, we can feel the contractions happen. Sometimes this reverses and the contents in the tube are pushed backward. Now we come to our stomach. The stomach is the main food storage tank. Your stomach can expand or get longer to store more food. Your stomach can release some food to the small intestine in a controlled manner. In the stomach, digestive juices are the things that break down the food that is ingested. They have saliva, gastric juice, pancreatic juice, bile, and intestinal juice in them. The are produced in the body little by little, but when more food comes in the body through the digestive tract, increased how much the body produces. In the stomach, the chyme is a partially digested chunk of food that is forced to the small intestine. It goes to the small intestine to for further digestion. The next part of our body is the small intestine is a twisted long tube that the chyme goes down. It is a very important part of our body, because it absorbs 90% of the nutrients of the food we eat. It transports the nutrients from food to the intestines and the rest of the body. It is super important to our body because that it is how we get the nutrients to all the parts in our body that need them in order to keep our body filled with energy. But it couldn’t do that without the villi. The villi helps by absorbing the nutrients and passes them into the bloodstream. The mucosa forms an inner layer of epithelial tissue and one inch of it contains about 20,000 villi. There are a lot of villi in our body. All of these things are what help our body absorb food and water into the bloodstream. The next part of our digestive system is our pancreas. Next is the pancreatic enzymes. They are important to our digestive system because they break down proteins, fats, and carbohydrates that enter the small intestine. The digestive system also has a part called the gall bladder. This part is just below the liver and considered not necessary since people can have them removed and remain healthy. There is also the liver is like a giant filter in our body. This is extremely important because we need it and people can’t live without it. Next is our bile. Our bile is the part of our body formed in the liver and is important because it is what breaks the fats into smaller masses for easier digestion. The Large intestine is another important important part of our body in our digestive system. This organ is responsible for collecting waste that is not digested in the small intestine. Think of it as a Plan B for the small intestine. The anus is a very simple part of our body. Our anus is what we use to force the waste in our body that we don’t need, out of our body. We absorb water into the bloodstream. It all starts by drinking water, or some other beverage. It goes directly to the small intestine and is densely folded to maximize the surface area in contract with the digested food. We also absorb food and nutrients into the bloodstream. First, we eat the food in which we desire, and goes to the small intestine. It is then turned into energy for our body to use. This is our digestive system.
Conclusion:
The main purpose of our digestive system is to get the nutrients we need into the body and our cells. It is a group of organs working together to do so. But, it couldn’t do it without the nervous system. That is another cool and important system in our body.
Nervous System:
Introduction:
The nervous system is a very important part of our body. It’s main parts are the brain, and the nerves throughout our body. It is what our body does to give our body signals to do many different things. The nervous system is a great and important system.
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In our nervous system has very important things in our body. One of the most important things in our nervous system is our brain. The brain is the central part of our nervous system and is also the primary organ. It is what sends signals to parts of our body. The cerebrum is the biggest part of the brain. The cerebrum is what helps us think and controls our voluntary muscles. For example, if your hand was being burnt, it would tell you to move it away. Next we have the cerebellum. This is important because it can protect us from certain things. The cerebellum is in the back of the brain and is what controls your balance, coordination, and movement. This is important because without it, we wouldn’t be able to walk or run. Finally, we have our medulla, or brainstem. The brainstem is a part of the brain that is a non-thinking part. It controls things like breathing, swallowing, or your heartbeats. This is super important because without it, we wouldn’t even be able to live. So now you know about the brain and it’s parts.
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Our next part of the nervous system is our nerves. First we have the sensory nerves. The sensory nerves are vessels that carry signals to our brain like senses. These are very important because without these, we wouldn’t be able to give any signals back to our brain telling it something that could be important. Next are the motor nerves. The motor nerves are what allow the brain to control our muscles. This is also super important because without this, we wouldn’t be able to move any of our muscles. Now we have the spinal cord. The spinal cord is a big pathway from your brain and all the way down the back. It carries signals to parts of our body. This is super important because if we didn’t have it, we wouldn’t able to give signals to any parts of our body. Finally there are neurons. Neurons are cells that transmit information in the body. These are important because without them, again, we wouldn’t be able to give signals in the body. The first parts of a neuron are the synapses. A synapse is a small gap at the end of a neuron that allows information to pass through it. Finally we have the dendrites and axons. The dendrites bring information into the cell body, while the axons take it away. All these cells are important because they all help us get information to where it needs to go in the body. Those are the nerves in our body.
Conclusion:
So now you know what our nervous system is. It is very important because it gives information to part in our body and helps us do many things. You learned about what our brain is, and what our nerves are. The system is a very cool, interesting, important system in our body.
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.
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.
Skeletal System:
Introduction:
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!
Body Paragraph 1:
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!
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Our body has six layers of joints and they are very important. The first joint is the cartilage. The cartilage in the human body and animals. It is a flexible connective tissue that cushions your bones so they don’t scrap each other. It is in a lot of parts in your body. It also serves a purpose of holding open tubes in the body. There are no blood vessels in cartilage. The next joint are the ligaments. They can connect bone to bone without touching so there are no injuries. They are stretchy so they can let your bones stretch out a little further then you would be able to. It helps you to stay stable. There are no blood vessels in ligaments like the cartilage. They also connect your muscles together. Next, there are gliding or sliding joints. These joints are formed between bone and allow bone to glide past one another. They let the bone glide past each other upward, downward, right, left, or diagonally. Next is the hinge joint and they can do cool things too. The hinge joint only goes up and down like a hinge on a door. It is on the ankle, the knee, and the elbow. It can also can flex to 180 degrees when normally flexed all the way. Next, is the pivot joint, which can rotate only. For example, we have them on our arms and legs. They are also used for twisting like on our waist or our neck. Finally, there are the ball and socket joints which is a ball shape socket. It can move in almost any rotation. It enables our bone to move in many planes. And those are the stuff in our bones. It’s really cool!
Conclusion:
As you can see, the Skeletal system has many important jobs to do. It allows us to stand straight up, move our body around, and to protect our most important organs. However, the Skeletal system can’t move our body by itself. I needs the help of our Muscular system as well.
Muscular System:
Introduction:
The muscular system is a very important part of your body. Our body is made up of a bunch of different kinds of muscles. There are voluntary muscles, and involuntary muscles. Both of them are opposite, but both in the muscular system. Read more to find out what they can do!
Body Paragraph 1:
Our body has two different kinds of muscles that are very different. The voluntary muscles are the kinds of muscles you can control. Voluntary muscles are Skeletal muscles, which are tendons, biceps, and triceps. Tendons are soft tissues that connect the muscles to bone or the eyeball. A tendon is similar to a ligament because a ligament jones one bone to another bone. A biceps is a muscle that allows you to bend your arm at your elbow, while the triceps relaxes. The biceps shortens to make this work. Then, the biceps relaxes, and the triceps pulls back down, to straighten your elbow. The triceps shortens to make this happen. The biceps is composed with two heads while the triceps is composed with three heads. All of these muscles you can control. That is why they are voluntary muscles.
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Next is the involuntary muscle. An involuntary muscle is which you can’t control. Again, the involuntary muscle has many different kinds of muscles in it but are all considered an involuntary muscle. One of the involuntary muscles is the cardiac muscle. The cardiac muscle is a heart muscle, found at the heart. It is found at the walls and the foundation of the heart. The cardiac muscle pumps the heart in which you can’t control. That is why it is an involuntary muscle. In addition, smooth muscles are also involuntary muscles. It is responsible for the contractility of the hollow organs, like blood vessels. A smooth muscle can be found in the trachea, or in bladder. When we eat food, we break it up into little bits. These are called nutrients. It is absorbed by the body, which is why it take hours to digest it. We can’t control these things, except for eating food. That is why these are involuntary muscles.
Conclusion:
So you have learned that voluntary muscles you can control, and that you can’t control involuntary muscles. There are many more muscles, but they are always considered a voluntary muscle, or an involuntary muscle. The Circulatory system is a very important system to. Without it we wouldn’t be the same!
Circulatory System:
Introduction:
You will learn about another fascinating part of our body in our Circulatory System. This system includes blood, blood vessels, and our heart. There are many different parts in those three categories, but those are the main three. Read more to find out what these parts in our body can do!
Body Paragraph 1:
A very important thing in our body is blood. We have different kinds of blood cells. For example, we have red blood cells and white blood cells. The white blood cells fight of the germs in our body. If you have an infection, you produce more white blood cells to help fight them off. Next we have the red blood cells. The red blood cells carry oxygen and carbon dioxide. They can pick up the oxygen and transport it to other cells. After that, the cells pick up the carbon dioxide and gives it to the lungs so then it comes out of our body when we breathe out. There are about 5,000,000 red blood cells in one drop of blood. Some other things in our body are platelets and plasma. Platelets are blood cells that help you stop bleeding. When we cut ourselves, blood leaks out, but The platelets get sticky, and eventually, more come, and they plug the cut up all together. Then they seal the cut. This is called a scab. Next is the plasma. The plasma is the liquid in the blood. It carries the blood cells throughout your body. Plasma is made of liver, and is the color of pale yellow. It helps replace lost blood fluids and other things we need in our body.
Body Paragraph 2:
In this paragraph, you will learn about blood vessels. First are the arteries. Arteries are tubes that blood flows through. It comes from the heart, and goes in any other place in the body. After the blood does what it needs to do in the body, it returns back to the heart. But there are also veins. Veins are also a very important part of the body too. Veins are blood vessels that carry blood to the heart. Most of the veins carry deoxygenated blood to the heart from tissues. Capillaries are super cool too! The capillaries are blood vessels that pass blood from arteries to veins. This is how they switch off. They are very small, just enough to get blood from arteries to veins. Their walls are very thin so the blood can get passed them without leaking out. Sometimes, they are able to profuse tissues in the body with oxygen and nutrients, that are supplied by the blood. Those are the blood cells in our body!
Body Paragraph 3:
Now you will learn about the heart. It has many cool things that provides it to work. They are the four chambers. The four chambers include the Left Atrium, the Left Ventricle, the Right Atrium, and the Right Ventricle. The Left Atrium fulfills functions such as, atrial kick for the left of the heart, influences the rate of the heart, and has endocrine qualities. Next is the Left Ventricle. The Left Ventricle is the biggest chamber of the heart. It occupies the hearts apex. It can pump the rich-blood to the body. It gets it from the Left Atrium. Now we move on to the Right Atrium. The Right Atrium can affect the heart rate on how fast or slow it is beating. It receives oxygen and poor blood and sends it to Right Ventricle. The Right Ventricle ejects the blood from the pulmonic valve, to the pulmonary arteries. It also pumps the poor blood to the lungs. That is what our heart does!
Conclusion:
So now you have learned about the Circulatory system. A very important system that helps our body a lot. Next, you will learn about the Respiratory system. It is another very important part of our body and we wouldn’t be the same without it. Have fun learning about it!
Respiratory System:
Introduction:
You will learn about how the Respiratory system works. There are many parts that will all be explained in the two body paragraphs. You will learn about how air enters the body, and how air moves in the lungs. Read more to find out how that works!
Body Paragraph 1:
Something very important and very cool is when air enters our body. It is probably more complicated than you think though. There are parts included like your nose, mouth, nasal passage, epiglottis, larynx, vocal cords, voice box, and trachea. Your nose and mouth breaths in the air, where it gets wet and warms up. It travels through your voice box and goes down your windpipe. The windpipe splits into two bronchial tubes that go down to your lungs. The nasal passage is a very hollow space in your nose and skull that is filled with hair and mucus, so that makes the air wet and warm and filter the air when it enters the lungs. The epiglottis is a flap in the throat that blocks the windpipe when either liquid or food is going to be swallowed. It is also, a flap made of cartilage at the root of your tongue. Next is the larynx. The larynx is also known as the voice box and is a funnel-shaped organ in the throat. It is a hollow muscular organ that forms an air passage to the lungs and is holding the vocal cords in humans and other mammals. The vocal cords are in the larynx that vibrate air as it passes air and it creates sound. This is how we talk. They can be found above the trachea and below the epiglottis and also help protect from some accidental inhalation of either food, saliva, or mucus. The voice box is made up of cartilage, connective tissue, mucous membrane, muscle, and is located in the upper front of the neck. The voice box allows us to speak. We have vocal cords within our larynx that allows us to do so. It has functions that keep the airway open so food doesn’t pass through the trachea. The trachea is also called the windpipe is a tube that connects the nose and the mouth to the lungs. It is important, because that is what the air goes through to get through the lungs. If we didn’t have them, we wouldn’t be able to breathe. It is comprised with cartilage and ligaments and is located in the front of the neck. So, that is how air enters our body. Now see how it moves in the lungs!
Body Paragraph 2:
Now you will learn about how air moves in the lungs. Well, lungs are a super important part of our body. The lungs provide our body with all the oxygen it needs. Over the course of a lifetime, you might use your lungs to breathe over a billion times. The air flows into the lungs through the windpipe. Next is the bronchial tube. The bronchial tube is a part of the respiratory tree. It is a structure that allows you to exchange air in your lungs. We breath rich or fresh air, but when we breathe out, we give poor or weak levels of oxygen. The bronchial tubes are what connect the lungs to the trachea. Next is the bronchi (plural for bronchus). A bronchus is one of the larger tubes in our body. It leads from the trachea to the lungs. There is one large bronchus tube that branches out to the smaller bronchi in the lungs. Bronchi carry air in and out of the lungs. Now to the bronchioles. The bronchioles is part of the airway that is passaged in the lungs. They can control air distribution and the airflow resistance in the lungs. They are located at the end of the bronchi. Now is the alveoli (plural for alveolus). It is a tiny air sac that are formed at the tip of the lungs. The function of the alveoli is the exchange of carbon dioxide. The exchange of gases is a process that allows an organism to exchange waste gases for gases it needs in order to function. That is how air moves in our lungs!
Conclusion:
So now you know how air enters the body and moves in the lungs. That is one of the most important parts of our body. But that is not all. Read more and find out how the Digestive system works!
Digestive System:
Introduction:
Today, you will learn about our digestive system. Our digestive system is another very important part of our body. The main purpose is to keep our body stored with energy, and get enough nutrients in our body. It is a very cool, and important system.
Body Paragraph 1:
The Digestive system is how we get nutrients and water to our body so we stay healthy and active. If we didn’t have it, we wouldn’t have enough energy to live. It is a really important part of our body. First is our mouth. Our mouth is the very beginning of the digestive system and is what we use to put food or water in our body. We break down our food into little pieces using our teeth. Our teeth is what we use to break up our food so we can swallow it. We break the food up into little chunks using mechanical actions. When we eat and chew up food, it is also called mechanical digestion. Saliva is also a part of the digestive system. When we see food, we start getting signals from our brain that tells us that we want the food. When that happens, we get saliva in our mouth. This is called chemical digestion. Next is the tongue. The tongue is filled with little tiny taste buds. We have four different kinds of taste buds, salty, sweet, sour, and bitter. This is how we taste our food in the digestive system. These taste buds give us the flavor of what we are eating. A bolus happens when we swallow. It is chewed up food. The next part of our digestive system is the esophagus. The esophagus is a part of our body that leads from the mouth to the stomach. It is a muscular passageway that carries the food we eat, and the water we drink down to enter our stomach. Next, we have peristalsis. Peristalsis is what pushes down the food and waste that we eat. Sometimes, we can feel the contractions happen. Sometimes this reverses and the contents in the tube are pushed backward. Now we come to our stomach. The stomach is the main food storage tank. Your stomach can expand or get longer to store more food. Your stomach can release some food to the small intestine in a controlled manner. In the stomach, digestive juices are the things that break down the food that is ingested. They have saliva, gastric juice, pancreatic juice, bile, and intestinal juice in them. The are produced in the body little by little, but when more food comes in the body through the digestive tract, increased how much the body produces. In the stomach, the chyme is a partially digested chunk of food that is forced to the small intestine. It goes to the small intestine to for further digestion. The next part of our body is the small intestine is a twisted long tube that the chyme goes down. It is a very important part of our body, because it absorbs 90% of the nutrients of the food we eat. It transports the nutrients from food to the intestines and the rest of the body. It is super important to our body because that it is how we get the nutrients to all the parts in our body that need them in order to keep our body filled with energy. But it couldn’t do that without the villi. The villi helps by absorbing the nutrients and passes them into the bloodstream. The mucosa forms an inner layer of epithelial tissue and one inch of it contains about 20,000 villi. There are a lot of villi in our body. All of these things are what help our body absorb food and water into the bloodstream. The next part of our digestive system is our pancreas. Next is the pancreatic enzymes. They are important to our digestive system because they break down proteins, fats, and carbohydrates that enter the small intestine. The digestive system also has a part called the gall bladder. This part is just below the liver and considered not necessary since people can have them removed and remain healthy. There is also the liver is like a giant filter in our body. This is extremely important because we need it and people can’t live without it. Next is our bile. Our bile is the part of our body formed in the liver and is important because it is what breaks the fats into smaller masses for easier digestion. The Large intestine is another important important part of our body in our digestive system. This organ is responsible for collecting waste that is not digested in the small intestine. Think of it as a Plan B for the small intestine. The anus is a very simple part of our body. Our anus is what we use to force the waste in our body that we don’t need, out of our body. We absorb water into the bloodstream. It all starts by drinking water, or some other beverage. It goes directly to the small intestine and is densely folded to maximize the surface area in contract with the digested food. We also absorb food and nutrients into the bloodstream. First, we eat the food in which we desire, and goes to the small intestine. It is then turned into energy for our body to use. This is our digestive system.
Conclusion:
The main purpose of our digestive system is to get the nutrients we need into the body and our cells. It is a group of organs working together to do so. But, it couldn’t do it without the nervous system. That is another cool and important system in our body.
Nervous System:
Introduction:
The nervous system is a very important part of our body. It’s main parts are the brain, and the nerves throughout our body. It is what our body does to give our body signals to do many different things. The nervous system is a great and important system.
Body Paragraph 1:
In our nervous system has very important things in our body. One of the most important things in our nervous system is our brain. The brain is the central part of our nervous system and is also the primary organ. It is what sends signals to parts of our body. The cerebrum is the biggest part of the brain. The cerebrum is what helps us think and controls our voluntary muscles. For example, if your hand was being burnt, it would tell you to move it away. Next we have the cerebellum. This is important because it can protect us from certain things. The cerebellum is in the back of the brain and is what controls your balance, coordination, and movement. This is important because without it, we wouldn’t be able to walk or run. Finally, we have our medulla, or brainstem. The brainstem is a part of the brain that is a non-thinking part. It controls things like breathing, swallowing, or your heartbeats. This is super important because without it, we wouldn’t even be able to live. So now you know about the brain and it’s parts.
Body Paragraph 2:
Our next part of the nervous system is our nerves. First we have the sensory nerves. The sensory nerves are vessels that carry signals to our brain like senses. These are very important because without these, we wouldn’t be able to give any signals back to our brain telling it something that could be important. Next are the motor nerves. The motor nerves are what allow the brain to control our muscles. This is also super important because without this, we wouldn’t be able to move any of our muscles. Now we have the spinal cord. The spinal cord is a big pathway from your brain and all the way down the back. It carries signals to parts of our body. This is super important because if we didn’t have it, we wouldn’t able to give signals to any parts of our body. Finally there are neurons. Neurons are cells that transmit information in the body. These are important because without them, again, we wouldn’t be able to give signals in the body. The first parts of a neuron are the synapses. A synapse is a small gap at the end of a neuron that allows information to pass through it. Finally we have the dendrites and axons. The dendrites bring information into the cell body, while the axons take it away. All these cells are important because they all help us get information to where it needs to go in the body. Those are the nerves in our body.
Conclusion:
So now you know what our nervous system is. It is very important because it gives information to part in our body and helps us do many things. You learned about what our brain is, and what our nerves are. The system is a very cool, interesting, important system in our body.
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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I had a PDF. It was:
http://www.classzone.com/science_book/mls_grade7_FL/584_589.pdf
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I had a PDF. It was:
http://www.classzone.com/science_book/mls_grade7_FL/584_589.pdf