Did you know that our bodies create about a gallon of mucus in just two days! I do. In fact, I know a lot of other interesting information about the human body, and YOU WILL TOO if you read my paper! Within this document, you will find six different body system essays including the muscular, skeletal, circulatory, respiratory, digestive, and nervous systems, which all work together to operate our body. All of these systems have different components, each with their own unique functions that help to keep us alive. However, each system cannot operate alone - they need each other to be successful. For example, the nutrients gathered by the digestive system get distributed throughout the body in the circulatory system! Over the previous 12 weeks, we gathered information, organized our thoughts, and paraphrased what trusted websites taught us about each system. We worked with responsibility partners and our papers definitely benefited from the collaboration. Just like each human body system needs to rely on the other systems, we relied on each other to improve our writing and our process. The following is the result of our hard work...
Our skeletal system is made up of 206 bones. Theses bones work together to provide our body with support so that we can stand, help us to move so we can walk around, and protect our vital organs like our heart and our brain! Our bones even make and store even more and store blood cells for our circulatory system! Without our bones we would be nothing more than a pile of skin, organs ,and muscles on the floor. We wouldn't be able to move and our organs wouldn't be safe!
Our bones are made up of many layers. These layers are important because we need our bones to be strong but lightweight. In order to achieve this goal, the outside layer of bone is made up of dense, compact bone that makes our bones strong and dense. The next layer of the bone is called cancellous bone (aka spongy bone) This layer allows our bones to be lightweight and transitions us to compact bone to bone marrow. Bone marrow is a thick and spongy section in the middle of the bone and is where the red and white blood cells are formed. Finally, our bones are all covered in a thin membrane called periosteum which is where our muscles attach to bones. So that is how bones are structured in order to keep our bodies strong, yet lightweight!
Although bones are extremely important, we wouldn't be able to move without joints! Joints are places are places where two or more bones meet. There are several types of joints in our bodies, but we’ll just focus on four of them. The first type of joint is called a hinge joint. Just like the hinges on a door, they allow movement back and forth. We have hinge joints at our elbow and knees and we even have them in our knuckles! Another type of joint is called a ball and socket joint. This is where one bone has a ball at the end of it and the other bone has a “baseball mit” for the ball to sit in. Our shoulders and hips are examples of ball and socket joints. The Third type of joint that we studies was called a gliding joint. Gliding Joints are places where two or more bones meet and slide past each other. Our wrists and ankles are two examples of gliding joints. The last type of joint is called the pivot joint. A pivot joint works when one bone acts like a ring and the other bone sits inside the ring and rotates. Our neck is an example of a pivot joint because it can rotate around and move up and down. At each joint a soft squishy material between bones which keeps them from rubbing together so they don’t hurt. This material is called cartilage. Cartilage, which is bendable, can also be found in our ears and nose. But all of this would not be possible weren't for ligaments holding all of our bones together at each joint. Ligaments are long, stretchy tissue that connect bone to other bone and stabilize joints. Without these ligaments in place bones wouldn't stay attached to each other and wouldn't allow joints to move. It's interesting to note that people that are double-jointed actually just have extremely stretchy ligaments. Joints definitely make movement possible and without them we’d have a hard time getting around our world!
Bones definitely are important parts of the human body. They allow us to move, help provide us structure and support, protect our important organs, and even make blood cells! Because bones are designed so well, they are strong, yet lightweight. Thanks to joints, ligaments, and cartilage, we are able to bend and move throughout our world. Finally, the muscles in our body attach to bones, giving us the power to actually move around!
Muscular System Paper:
The muscular system helps the human body move around and have fun. Let's say you want to move your arms around, eat your favorite sandwich , or run, you use muscles! There are many different types of muscle and they all serve different purposes. ( e.g movement, pumping blood, dilating your pupils). Some of these purposes are controlled by us, while others are controlled automatically by the muscle cell or the brain. There are two types of categories of muscles in the human body:
voluntary and involuntary. Voluntary muscles that we have control over. They are the muscles that control our body's movements and are attached to bones. Skeletal muscles are the only type of voluntary muscle in our body. They pull on bones to cause us to move. Skeletal muscles never push, they only pull, and that’s why they are nearly always found in pairs. One example of this is the biceps and triceps that are located in our upper arms. When the biceps want to pull the lower arm up they contract or shrink, while the triceps relax or expand. When the triceps want to pull the arm down, they contact while the biceps relax. This is an example of a pair of muscles working together to make movement. But those muscles wouldn't be able to do any of this without tendons connecting them to the bones that they move! Tendons are flexible bands of tissue that blend into bones and enable them to move the bones that are supposed to move. Although skeletal muscles are the only type of voluntary muscle there are two types of involuntary muscle.
Although skeletal muscles are the only type of voluntary muscles, there are two different kinds of involuntary muscles. Involuntary muscles are the muscles that do stuff automatically without knowing it. There are two examples of involuntary muscles. they are cardiac muscle and smooth muscle. Cardiac and smooth muscles are similar because they work automatically by themselves. Cardiac muscles are muscles found only in our heart that are responsible for pumping blood throughout my body. Cardiac muscles work without us thinking about them, and they contract and relax throughout our whole life. Smooth muscles are found inside our organs like the intestines esophagus, and bladder and help move food through your body. Smooth muscles can also be found in our eyes, as your blood vessels. Smooth muscles cells look like one big cell but they are actually a lot of small cells grouped together (unlike the striated, skeletal cells). So clearly, there are many types of involuntary muscles in our body that do things we had no idea about. Including important tasks like pumping blood and digesting food!
The muscular system is a powerful system that allows us to move convert food into energy and circulate blood throughout our body. Our muscles make up half of our body weight and give our body tone and shape. In the next essay, learn how some of these muscles move blood throughout our body in order to deliver oxygen to all of our cells. Left common artery, left ventricle, right ventricle, right atrium, and the left atrium.
Circulatory System:
Within our body there is a huge network of blood vessels with blood racing through our body. Our circulatory systems job is to transport materials through our body like water and oxygen. If we didn't have our circulatory system we wouldn't be able to breathe because our heart is part of our circulatory system.
Body Paragraph: The circulatory system is made up of many parts. Lots of the parts in the circulatory system are very important. One of the parts that are very important is blood. You know when you are sick and you feel really tired. One of the reasons that you are tired are because of the white blood cells. White blood cells help fight the infections in your body. White blood cells are very important because they help get rid of the things in your body. What there job is to help make you feel better by protecting you from things like infections, diseases, and colds. There are many more important parts of the circulatory system like Red blood cells. Red blood cells are the small red blood cells that look like kind of like red doughnuts. They also play a very important role of carrying the oxygen throughout your body. If we didn’t have red blood cells we would have a pretty hard time breathing. You know when you get a cut or fall you start bleeding but it doesn’t bleed for long. Why it doesn’t keep bleeding for a long time is because of platelets. Platelets job is to form clots to help stop the blood from coming out of your body. If we didn’t have platelets we would have cuts with blood pouring out of them like crazy! Plasma is a usually forgotten part of our circulatory system. Plasmas job is to carry the blood components throughout the body as the fluid as they travel. That wraps up the some of the important parts of the circulatory system.
Blood vessels are like a set of roads. There are like the highways the intersections and the shortcuts that our body has. Blood vessels are the things that carry your blood around body through tunnels. Blood vessels are important because if we didn’t have it our body would be all over the place. There are lots of things that go through our blood vessels. There are five different kinds of blood vessels. One of the types of blood cells are the arteries. The arteries are the blood vessels that deliver the oxygenated-rich blood from the heart to the tissues of the body. Another type of blood vessel is the capillary. The capillary is the smallest blood vessel. The capillaries are the ones that allow water, oxygen, carbon dioxide, and other nutrients and waste. The heart is one of the most important things in your body. The heart is the thing that you need to survive. The heart's job is to pump the blood throughout your body. It is essential to your body because it pumps the blood and pumps it to your lungs so your lungs can work. If your lungs didn’t get the blood pumped from the heart you wouldn’t be able to live because you couldn’t breathe. That is why the heart and the blood vessels are very important and that's why you couldn't live without them. Clearly you heart and your blood vessels have some very important parts.
There are lots of different parts in the heart. Some of the parts are the left atrium and the left ventricle. The left ventricles job is to transport blood to the different parts of the heart. The left atriums job is to pump all oxygen rich blood to the heart. There are 2 other important parts in the heart they are the right ventricle and the right atrium. The deoxygenated blood enters the right atrium and it fixes it. The right atriums job is to do the same thing as the right ventricle. We have many important parts in the heart and we wouldn’t live without them.
In conclusion the circulatory system has a very important job to pump blood get blood through the body and make sure we get oxygen.
The Respiratory System, one of its important jobs is to supply air to the body parts. One of the parts that gives the air to the parts of the body is the trachea. The tracheas job is to bring the air to the body parts in the body. The trachea is more known as the windpipe. The trachea is composed of 20 parts of cartilage. Some of the parts are thyroid cartilage, tracheal cartilage, and cricoid cartilage. The trachea is important because all the parts in our body would not get oxygen and they would not function correctly. How does the air enter the body? The air enters the body by our mouth or nose. It can either go through an open mouth or a nose that is not clogged. The air goes down to the trachea and then it takes it to the lungs where it passes a blood stream. It is bad to have dirt or dust get into your lungs. There is one important part in the body that can stop that. It is called the nasal cavity. The nasal cavities job is to stop any dirt or dust that comes through your nose to stop it from going into our lungs. The epiglottis is a little piece of cartilage at the root of our tongue. Its job is to close your trachea when you swallow your food or anything else. The larynx is a hollow muscular organ that forms an air passage to the lungs. It also helps hold the voice box in place. There are many important parts in the respiratory system.
Some of the parts in the respiratory system allow you to sing and talk. Well that part is called the voice box. The voice box (or the larynx) allows you to talk sing and make sounds! The vocal cords are the folds of membranous tissue that project inward from the sides of the larynx. Did you know you had a windpipe? Well you do and it's called the trachea. The trachea is a wide hollow tube that connects to the larynx. It is an integral part to the body’s airway and function for providing air to the lungs. Have you ever wondered how the air moves through the lungs. Well, this paragraph will tell you. The air enters the lungs by breathing in. When you breathe in or inhale your diaphragm tightens or contracts and moves downward. This increases the space in your chest cavity, then your lungs will expand. The lungs are one of the most important parts in our body. The lungs are the pair of spongy air filled tubes covered by the rib cage. The lungs are important because they are the part that has all the air that we have. They allow the oxygen in the air to be taken into the body. That enables the body to get rid of the carbon dioxide. When a person breathes the air comes through the bronchial tube. The bronchial tube is the tube that the air passes through when the air comes through our mouth or nose. The bronchus and the bronchi are kinda the same as the bronchial tube. The bronchus and the bronchi are tiny passageways that evolve into tiny air sacs called alveoli. One of the parts that are very quiet in the respiratory system and that is the bronchioles. The bronchioles are very important because they are the conducting zone of the respiratory system. The biggest and one of the most important things in the respiratory system is the alveoli. The alveoli is the part in our body that takes care of the gas exchange. The oxygen from the inhaled air diffuses through the walls of the alveoli. The exchange of gases is very important because because it is the delivery of the oxygen to the lungs. It is very important because you wouldn’t get air to the lungs and you wouldn't be able to breathe.
So there you are eating lunch with some friends. When you're finished you take a big sip of your juicebox and head to recess. In a few minutes you are thinking of what game to play at recess.
Digestive System: The digestive system is a very important part inside the body. One of the important parts is the mouth. The mouth is a very important thing in our body because it has the teeth and all the saliva that we need to eat our food. The mouth also has the teeth that helps all the food go down so you do not choke. There are 2 different kinds of digestions in the body. They are Mechanical and the Chemical digestion. The mechanical digestions job is to put all the food that you chewed with your teeth even smaller and in a more mushy substance. The teeth are an essential part of the body and the digestive system because they are the first part to chew up the food. They get it all started! The teeth are also an important part of the body because they help you speak. If you didn’t have your teeth you wouldn’t be able to speak very well. As I said before there are two different kinds of digestion. The chemical and mechanical. The chemical digestion is the type of digestion that breaks down the food into the simpler digestion. In chemical digestion saliva has a very important role too. It has the role to break down some of the nutrients in the food. In the mouth there is the tongue. The tongue is a muscular organ in the mouth. The tongue is covered in a moist pink tissue called mucosa. The tongue is very important because it helps when the food comes into your mouth. The tongue has all the taste buds that you would need in your mouth. Thanks to your tongue you can taste many delicious foods! In your digestion there are lots of things. One of the things is the bolus. The bolus is the mass of food in your body is ready to go through the digestive system. The bolus looks like a big clump of food that looks like it is all chewed up. In your body you have a lot tubes. One of the tubes is the esophagus. The esophagus is a small muscular tube that is connected to the throat. It helps when you are swallowing the food. The peristalsis is a series of wavelike muscle contractions. The process of peristalsis starts with the esophagus.
Your stomach is a very important organ and a very important part in the digestive system. The stomach receives the food from the esophagus. The stomach muscles squeeze together and mush all the food together. In the stomach there is something called digestive juices. Digestive juices are the lining in the stomach. They produce stomach acids and enzymes that help digest the nutrients. Have you ever wondered how all the nutrients get absorbed into the bloodstream? Well here you go! The muscles of the small intestine mix with the food from the digestive juices. In the belly there is a thing called the pancreas. The pancreas is a long flattened gland located in the belly. It is not seen in our daily lives but it is very important. Pancreatic enzymes is the part that is used to help digest the food. The gall bladder and the liver are located in the upper right portion of the stomach. The gallbladder is mainly a storage organ that helps in the digestion of fat. On the other hand the liver produces proteins that are very good for blood clotting. The gallbladder and the liver release something called bile. Bile is a fluid that is released by the liver and goes into the gall bladder. Bile helps with digestion and it breaks down all the food into the fat that it needs.
The large intestine is the last part of the body that performs the task of absorbing water and vitamins into the body. The large intestine is used for metabolism. The large intestine really helps with the body and keeping it running. If you have ever wondered how the water goes into the bloodstream. the small intestine absorbs massive quantities of water. A normal person absorbs 1 to 2 liters of water each day. The last part in the digestive system. It is the anus. The anus is the end of the body where solid waste leaves the body. Even through the anus sounds gross it is a very important part in the body.
In conclusion the digestive system is the best system for food and anything that is consumed into your body. From the stomach to the esophagus the digestive system is very supercalifragilisticexpialidocious important to your body!
Nervous System Paper:
Intro:
Have you ever wondered what the boss of your body is? Well the boss of your body is the brain. The brain is the thing that runs and controls your body. Your brain is even running and thinking when you are resting and sleeping! Your Human body has something called the cerebrum. The cerebrum which is located in the the front area of the skull and is responsible for integration of complex sensory. There is more than one part in the brain. One of which is the cerebellum.One part is the cerebellum. The cerebellum contributes to coordination, precision, and accurate timing. These things are very important because if you didn’t have them you wouldn’t do do things very well and you would really mess things up. In your body there is something called the brainstem. The medulla is in the lower half of the brainstem. It is continuous with the spinal cord. The medulla controls the cardiac, respiratory, vomiting, and a lot more things. The brain is a very important with all of it’s parts and all the other things it has. like the precision and perfection (even though we are not perfect).
So, have you ever thought about what transmits all the things to your mouth to open and close or how you move your leg? Well, this paragraph will tell you. In the human body there is something called nerves. Nerves are like the lightning strikes in our body. Nerves are so fast that they are about the speed of light. Nerves are cable like things in your body that transmit a lot of the actions that we do. With nerves are sensory nerves. Sensory nerves help with the actions that we do. Some of the actions that they take care of are sight, feeling, hearing, and much more. If you didn’t have the sensory nerves it would be bad because you wouldn’t be able to feel things and your hands and you body would be num. That goes into motor nerves. Motor nerves take impulses from the brain a spinal cord or muscle glands. The spinal cord is kind of like motor nerves. The spinal cord is a long, thin mass of bundled neurons. Those bundled neurons carry information through the vertebral cavity of the spine. The spinal cord functions as a part that carries info to parts of the body. As we said earlier in the spinal cord there are parts called the neurons. Neurons are the part in the body that come in many different shapes and sizes. About a handful of neurons are so small that they are only 4 microns wide! A handful a super big neurons are about 100 microns wide! Neurons are specialized on transferring messages throughout the body. Those messages get transferred through an electrochemical process. That leads onto the synapses. A synapse is a part in your body that is a junction between a neuron and another cell. Synapses can form between 2 neurons or a neuron and an effector cell. Then there are axons. The axons are the parts that are the part of the nerve cell. That is nervous system one of the most important parts of the body.
In conclusion, the human body has many systems that each work hard to do specific jobs to benefit our bodies, but they also work together successfully to ensure our well-being. The skeletal system provides support, protection and structure while the muscular system allows us to move, breathe, and digest food. The circulatory system transports oxygen and nutrients to the cells of our body while getting rid of waste products and the respiratory system swaps out the oxygen and carbon dioxide. Finally, the digestive system converts food into energy while the nervous system uses that energy to make decisions and maintain memories. I appreciate the time you took to read these essays and hope that you learned something valuable. So the next time you move a muscle or take in a breath, I hope you’ll think about how impressive our human body really is!
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