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 206 bones. These 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 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!
Skeletal System
Our bones are made up of many layers. These layers are important because we need our bones to be strong, yet lightweight. In order to achieve this goal, the outside layer of bone is made up of solid, compact bone that makes our bones strong and dense. The next layer of bone is called cancellous (a.k.a. spongy bone). This layer allows our bones to be lightweight and transitions us from compact bone into bone marrow. Bone marrow is a thick and spongy section in the middle of bone where red and white blood cells are formed. Finally, our bones are all covered in a thin membrane called peritoneum 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 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 elbows 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 mitt” for the ball to sit in. Our shoulders and hips are examples of ball and socket joints. The third type of joint that we studied 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 can be found between bones which keeps them from rubbing each other, which would be painful. This material is called cartilage. Cartilage, which is bendable, can also be found in our ears and nose. But all of this wouldn’t be possible if it 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 who 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!
Skeletal System
Our bones are made up of many layers. These layers are important because we need our bones to be strong, yet lightweight. In order to achieve this goal, the outside layer of bone is made up of solid, compact bone that makes our bones strong and dense. The next layer of bone is called cancellous (a.k.a. spongy bone). This layer allows our bones to be lightweight and transitions us from compact bone into bone marrow. Bone marrow is a thick and spongy section in the middle of bone where red and white blood cells are formed. Finally, our bones are all covered in a thin membrane called peritoneum 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 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 elbows 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 mitt” for the ball to sit in. Our shoulders and hips are examples of ball and socket joints. The third type of joint that we studied 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 can be found between bones which keeps them from rubbing each other, which would be painful. This material is called cartilage. Cartilage, which is bendable, can also be found in our ears and nose. But all of this wouldn’t be possible if it 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 who 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!
The Muscular System
The muscular system helps the human body move around and have fun! Let's say you want to move or eat a sandwich you use muscles. They all serve different for purposes, such as movement and dilating pupils. Some of these purposes are controlled automatically.
There are two types of categories of muscles in the human body,
voluntary and involuntary. Voluntary muscles are muscles that we have control over. They are the muscles that control our body's movements and are attached to our bones. Skeletal muscles are the only type of voluntary muscles in our body. They pull on bone, never push to cause us to move skeletal muscles. They they are nearly always found in pairs. One example of this is the bicep and triceps that are located in our upper arms. When one set of muscles (like biceps) want to pull on the lower arm, they contract or shrink while the triceps compare.When the triceps want to pull the arm down they contract while the biceps relax. This is an example of a pair of muscles working together to make movement. They wouldn't be able to without the tendons connecting them to the bone that they move! Tendons are flexible bands of tissue that blend into bones. They enable them to move the bones that were voluntary muscles. There are two different of involuntary muscle!
Unlike voluntary muscles, involuntary muscles do things automatically without us knowing it. There are two examples of involuntary muscles, cardiac and smooth muscle. Cardiac and smooth muscles are similar because they work automatically, by themselves. Cardiac muscles are found only in our heart, and are responsible for pumping blood throughout our body. They work without us thinking about them,and they contract and relax throughout our entire lives. Smooth muscles are found inside our organs like intestines, esophagus, stomach and bladder. They help move food through our body.
Smooth muscles can also be found in your blood vessels and eyes. Smooth cells are grouped together (unlike the striated skeletal cells). involuntary muscles in our body do things we had know idea about, Including important tasks like digesting food and pumping blood!!!
The muscle system is a powerful system that allows us to move, convert food into energy and circulate blood through our body. Our muscles make up over half our body weight and give our body tone and shape.
There are two types of categories of muscles in the human body,
voluntary and involuntary. Voluntary muscles are muscles that we have control over. They are the muscles that control our body's movements and are attached to our bones. Skeletal muscles are the only type of voluntary muscles in our body. They pull on bone, never push to cause us to move skeletal muscles. They they are nearly always found in pairs. One example of this is the bicep and triceps that are located in our upper arms. When one set of muscles (like biceps) want to pull on the lower arm, they contract or shrink while the triceps compare.When the triceps want to pull the arm down they contract while the biceps relax. This is an example of a pair of muscles working together to make movement. They wouldn't be able to without the tendons connecting them to the bone that they move! Tendons are flexible bands of tissue that blend into bones. They enable them to move the bones that were voluntary muscles. There are two different of involuntary muscle!
Unlike voluntary muscles, involuntary muscles do things automatically without us knowing it. There are two examples of involuntary muscles, cardiac and smooth muscle. Cardiac and smooth muscles are similar because they work automatically, by themselves. Cardiac muscles are found only in our heart, and are responsible for pumping blood throughout our body. They work without us thinking about them,and they contract and relax throughout our entire lives. Smooth muscles are found inside our organs like intestines, esophagus, stomach and bladder. They help move food through our body.
Smooth muscles can also be found in your blood vessels and eyes. Smooth cells are grouped together (unlike the striated skeletal cells). involuntary muscles in our body do things we had know idea about, Including important tasks like digesting food and pumping blood!!!
The muscle system is a powerful system that allows us to move, convert food into energy and circulate blood through our body. Our muscles make up over half our body weight and give our body tone and shape.
Circulatory System
Circulatory System:
You need blood to live. It pretty much fuels your nutrients. It is pumped by the heart. It flows to all the parts of your body through veins, arteries, and capillaries. It gives you oxygen and the nutrients you need for your day. The oxygen from the blood goes to billions of cells. Without them, you will DIE, probably. It is essential for good living and health. Your blood carries carbon dioxide and other waste materials to the lungs, kidneys, and the digestive system. These systems eliminate waste from the body.
The white blood cells work with special proteins called antibiotics that help you eliminate disease and infection. You can get protection from some diseases with injections or having the disease before.
The red blood cells are always being made in the bone marrow. They live for about four month and then die and other cells use them to create new red blood cells. They start in the lungs to gather oxygen and then they carry that to the whole body. This happens very fast. These are very important to the body as they carry oxygen which the body cannot live without.
Also in the blood are platelets that sit in the blood and when you start bleeding they stop the bleeding and try to stitch it up. They form a clot that stops the bleeding. That's why you get a scab on cuts.
Plasma is more than half of the blood in your body. It is a clear pale yellow and carries all the blood cells, platelets, chemicals such as hormones and glucose.
Arteries take the blood that is oxygenated away from the heart. They have a tough exterior but are smooth on the inside. The inside of the arteries contain epithelial cells that are smooth and let the blood flow easily. The veins are blue and return blood to the heart, lungs to be oxygenated.
When you feel your heart beating that is is known as the cardiac cycle. That cycle makes your heart chambers get bigger and smaller when you breathe. Your heart has four chambers. The upper chambers are known as the atria and the bottom are ventricles. The atria and the ventricle sit next to each other. Their is a right atrium and a right ventricle, a left atrium and a left ventricle. The blood enters through both of the atrias and exits through both of the ventricles. It is then pumped out through the ventricles and goes through a process by way of the pulmonary veins around the lungs.
There are billions of blood cells helping you at all times, unless you’re dead. So as you know, blood helps us live we need it flowing at all times.
You need blood to live. It pretty much fuels your nutrients. It is pumped by the heart. It flows to all the parts of your body through veins, arteries, and capillaries. It gives you oxygen and the nutrients you need for your day. The oxygen from the blood goes to billions of cells. Without them, you will DIE, probably. It is essential for good living and health. Your blood carries carbon dioxide and other waste materials to the lungs, kidneys, and the digestive system. These systems eliminate waste from the body.
The white blood cells work with special proteins called antibiotics that help you eliminate disease and infection. You can get protection from some diseases with injections or having the disease before.
The red blood cells are always being made in the bone marrow. They live for about four month and then die and other cells use them to create new red blood cells. They start in the lungs to gather oxygen and then they carry that to the whole body. This happens very fast. These are very important to the body as they carry oxygen which the body cannot live without.
Also in the blood are platelets that sit in the blood and when you start bleeding they stop the bleeding and try to stitch it up. They form a clot that stops the bleeding. That's why you get a scab on cuts.
Plasma is more than half of the blood in your body. It is a clear pale yellow and carries all the blood cells, platelets, chemicals such as hormones and glucose.
Arteries take the blood that is oxygenated away from the heart. They have a tough exterior but are smooth on the inside. The inside of the arteries contain epithelial cells that are smooth and let the blood flow easily. The veins are blue and return blood to the heart, lungs to be oxygenated.
When you feel your heart beating that is is known as the cardiac cycle. That cycle makes your heart chambers get bigger and smaller when you breathe. Your heart has four chambers. The upper chambers are known as the atria and the bottom are ventricles. The atria and the ventricle sit next to each other. Their is a right atrium and a right ventricle, a left atrium and a left ventricle. The blood enters through both of the atrias and exits through both of the ventricles. It is then pumped out through the ventricles and goes through a process by way of the pulmonary veins around the lungs.
There are billions of blood cells helping you at all times, unless you’re dead. So as you know, blood helps us live we need it flowing at all times.
Nervous System
The brain is like the control station. This station is powered by billions to trillions of nerve cells that are called neurons. Even scientist are saying it's the most advanced thing they have ever seen. There are three parts of the brain. The cerebrum is your memory. It keeps moving in patterns. if you listen or see a pattern again, it helps you remember it. The cerebrum can influence your subconscious. Another part in your brain is the cerebellum. It can help you talk and it controls your voluntary movement. The final part is the medulla. The medulla controls involuntary movements like breathing. Do you think about breathing before you do it and blinking and your heart beating? The Medulla also it controls your emotions and what to worry about.
At the end of every nerve is a sac of neurotransmitters. They contain chemicals that can transmit nerve impulses from one nerve to another. As they move along they make a chemical spark that moves them forward. This happens over and over until the message gets where it is going. It can travel 270 mph to get where it's going.
Sensory nerves change how you see things, feel things, and hear things. These signals are sent back to our central nervous system to help our body react to surroundings. In the spine alone there are 13.5 million neurons.
Motor nerves carry impulses from the brain to the spinal cord or a muscle cord. They are located in the spine and execute commands They mainly control muscles and glands.
The spinal cord is is a part of your central nervous system. It's main function is to relay information about what is going on inside and outside your body.
A neuron is a nerve cell they are in the spine and your brain The purpose of a neuron is to retrieve incoming information and send them to your muscle glands or to other neurons. A synapse is a part at the end of a neuron which enables signals to send.
The mammalian brain holds 100 million to 100 billion neurons. The brain is what it is because of how it interacts with the neurons. Each neuron contains dendrites, cell, and an axon
An axon looks like a long stem growing off of the cell body. A neuron may only have one axon. The axon is covered by a material called myelin. This helps with electrical signal for the signal to move quickly.
The nervous system sends signals throughout the body. Without it we could not walk or move or do anything.
At the end of every nerve is a sac of neurotransmitters. They contain chemicals that can transmit nerve impulses from one nerve to another. As they move along they make a chemical spark that moves them forward. This happens over and over until the message gets where it is going. It can travel 270 mph to get where it's going.
Sensory nerves change how you see things, feel things, and hear things. These signals are sent back to our central nervous system to help our body react to surroundings. In the spine alone there are 13.5 million neurons.
Motor nerves carry impulses from the brain to the spinal cord or a muscle cord. They are located in the spine and execute commands They mainly control muscles and glands.
The spinal cord is is a part of your central nervous system. It's main function is to relay information about what is going on inside and outside your body.
A neuron is a nerve cell they are in the spine and your brain The purpose of a neuron is to retrieve incoming information and send them to your muscle glands or to other neurons. A synapse is a part at the end of a neuron which enables signals to send.
The mammalian brain holds 100 million to 100 billion neurons. The brain is what it is because of how it interacts with the neurons. Each neuron contains dendrites, cell, and an axon
An axon looks like a long stem growing off of the cell body. A neuron may only have one axon. The axon is covered by a material called myelin. This helps with electrical signal for the signal to move quickly.
The nervous system sends signals throughout the body. Without it we could not walk or move or do anything.
Digestive System
The mouth is part of the digestive system. It helps you eat, make faces, talk and the tongue helps with that too. It allows you to do anything with your voice box. The saliva glands make mucus and/or saliva. When the food goes down to your mouth it sends a message to the saliva glands. Your body wants you to mix the food with the saliva before you eat it. Your tongue moves around to help you talk. Your tongue also helps you while you chew because it pushes the food down into your teeth so you can grind it up. The bolus was a Greek word with the meaning lump. The term bolus describes a one large dose of medication for a person with diabetes. The bolus is a dose of insulin. That medicine handles the rising blood or your sugar level. The esophagus is a muscle. It opens food and lets the food pass through the stomach and then quickly closes before any food or stomach acid comes back up. Once the food is in the esophagus it moves by the peristalsis. Your esophagus uses the walls to squeeze the food along until it reaches the stomach. The stomach is part of the digestive tract. This tract goes to the liver, pancreas, and the gallbladder. The GI tract is many hollow organs joined by a tube from the mouth to the anus. These hollow organs are mouth, esophagus, stomach, small intestine, and the large intestine. Chyme is a liquid substance found in the stomach that helps digest the food. The small intestine helps absorbs food and nutrients into the bloodstream. Villi are tiny projections that stick out inside the small intestines to help absorb nutrients. Another important organ is the pancreas. This organ produces enzymes which helps your body digest food. The liver and gallbladder share a vessel called the bile duct. Bile is an important fluid produced by the liver and stored in the gallbladder. This bile duct flows into the small intestine where it helps you digest your food. The large intestine begins at the caecum and ends at the rectum. The cecum is less than one meter long. The large intestine includes the appendix, the cecum, the colon and the rectum. Ending this process is the small ring called the anus.
The small intestine absorbs water into your bloodstream. it absorbs massive amounts, about 6 to 7 liters, of water. If you do not have this water you become dehydrated.
The rectum is the last part of your digestive track. The rectum is the last straight part of the large intestine. It controls the expulsion of your feces.
The small intestine absorbs water into your bloodstream. it absorbs massive amounts, about 6 to 7 liters, of water. If you do not have this water you become dehydrated.
The rectum is the last part of your digestive track. The rectum is the last straight part of the large intestine. It controls the expulsion of your feces.
Respiratory System
ere are three major parts of the respiratory system, the airway, the muscles and the lungs for respiration. The airway includes the nose, mouth, pharynx, larynx, the trachea, the bronchi, The brain is like the control station. This station is powered by billions to trillions of nerve cells that are called neurons. Even scientist are saying it's the most advanced thing they have ever seen. There are three parts of the brain. The cerebrum is your memory. It keeps moving in patterns. if you listen or see a pattern again, it helps you remember it. The cerebrum can influence your subconscious. Another part in your brain is the cerebellum. It can help you talk and it controls your voluntary movement. The final part is the medulla. The medulla controls involuntary movements like breathing. Do you think about breathing before you do it and blinking and your heart beating? The Medulla also it controls your emotions and what to worry about.
At the end of every nerve is a sac of neurotransmitters. They contain chemicals that can transmit nerve impulses from one nerve to another. As they move along they make a chemical spark that moves them forward. This happens over and over until the message gets where it is going. It can travel 270 mph to get where it's going.
Sensory nerves change how you see things, feel things, and hear things. These signals are sent back to our central nervous system to help our body react to surroundings. In the spine alone there are 13.5 million neurons.
Motor nerves carry impulses from the brain to the spinal cord or a muscle cord. They are located in the spine and execute commands They mainly control muscles and glands.
The spinal cord is is a part of your central nervous system. It's main function is to relay information about what is going on inside and outside your body.
A neuron is a nerve cell they are in the spine and your brain The purpose of a neuron is to retrieve incoming information and send them to your muscle glands or to other neurons. A synapse is a part at the end of a neuron which enables signals to send.
The mammalian brain holds 100 million to 100 billion neurons. The brain is what it is because of how it interacts with the neurons. Each neuron contains dendrites, cell, and an axon
An axon looks like a long stem growing off of the cell body. A neuron may only have one axon. The axon is covered by a material called myelin. This helps with electrical signal for the signal to move quickly.
The nervous system sends signals throughout the body. Without it we could not walk or move or do anything.
and the bronchitis. They all carry air through the lungs.
The air can enter through your mouth or nose. Next is goes down the trachea to the lungs to be passed on to the bloodstream.
When the air enters the nose the tiny hairs trap unwanted particles and germs before it gets into the body. The mucus in your nose traps all of the bad particles or germs. The air is warmed and moistened.
A flexible flap the end of the larynx (epiglottis) in the throat acts as a switch between the larynx and the esophagus to get air into the airways. Then the air can go to the lungs and food can go to the stomach. The epiglottis is tear shaped and protects you from choking.
The larynx, voice box, is and organ in the neck that protects you from inhaling food and it helps your with breathing. It houses the vocal cords that create sound.
We breathe about 20,000 times a day and you could not breathe without your respiratory system. The trachea helps you breathe. The mucus gets all the bad stuff out of the air and that helps us breathe.
The lungs contain elastic tissue that allows them to inflate and deflate. They also have a thin lining called the pleura that covers the outside of the lungs. It also extends over the diaphragm. The pleura works with the alveoli, bronchitis, and bronchi. Ever since you are born you start breathing. You breathe all day and all night. Even when you are sleeping. When you inhale your lungs get oxygen then it is sent through the blood to all parts of your body. As you are breathing, the oxygen makes carbon dioxide which is what you exhale.
When we start breathing the air goes through the windpipe and then it goes to the bronchial tubes and passes through the airways to let air in and out so you can breathe. The bronchi are tubes that lead from your trachea to your lungs. They have cartilage to support them. The right bronchus is shorter and wider than the left one. You breathe air and then the air goes into the larynx and then to the trachea which leads into the lungs and then you exhale it and it becomes carbon dioxide.
The alveoli are small pods of air found in the lung tissue of certain organisms. Pods have porous made of small cells which have fluids to diffuse. In the alveoli the oxygen is in the red blood cells and they will have lower concentration than the air in the lungs and alveoli. The alveoli does a gas exchange and it passes from the alveolus to the blood and then it binds with the haemoglobin in the red blood cells.
At the end of every nerve is a sac of neurotransmitters. They contain chemicals that can transmit nerve impulses from one nerve to another. As they move along they make a chemical spark that moves them forward. This happens over and over until the message gets where it is going. It can travel 270 mph to get where it's going.
Sensory nerves change how you see things, feel things, and hear things. These signals are sent back to our central nervous system to help our body react to surroundings. In the spine alone there are 13.5 million neurons.
Motor nerves carry impulses from the brain to the spinal cord or a muscle cord. They are located in the spine and execute commands They mainly control muscles and glands.
The spinal cord is is a part of your central nervous system. It's main function is to relay information about what is going on inside and outside your body.
A neuron is a nerve cell they are in the spine and your brain The purpose of a neuron is to retrieve incoming information and send them to your muscle glands or to other neurons. A synapse is a part at the end of a neuron which enables signals to send.
The mammalian brain holds 100 million to 100 billion neurons. The brain is what it is because of how it interacts with the neurons. Each neuron contains dendrites, cell, and an axon
An axon looks like a long stem growing off of the cell body. A neuron may only have one axon. The axon is covered by a material called myelin. This helps with electrical signal for the signal to move quickly.
The nervous system sends signals throughout the body. Without it we could not walk or move or do anything.
and the bronchitis. They all carry air through the lungs.
The air can enter through your mouth or nose. Next is goes down the trachea to the lungs to be passed on to the bloodstream.
When the air enters the nose the tiny hairs trap unwanted particles and germs before it gets into the body. The mucus in your nose traps all of the bad particles or germs. The air is warmed and moistened.
A flexible flap the end of the larynx (epiglottis) in the throat acts as a switch between the larynx and the esophagus to get air into the airways. Then the air can go to the lungs and food can go to the stomach. The epiglottis is tear shaped and protects you from choking.
The larynx, voice box, is and organ in the neck that protects you from inhaling food and it helps your with breathing. It houses the vocal cords that create sound.
We breathe about 20,000 times a day and you could not breathe without your respiratory system. The trachea helps you breathe. The mucus gets all the bad stuff out of the air and that helps us breathe.
The lungs contain elastic tissue that allows them to inflate and deflate. They also have a thin lining called the pleura that covers the outside of the lungs. It also extends over the diaphragm. The pleura works with the alveoli, bronchitis, and bronchi. Ever since you are born you start breathing. You breathe all day and all night. Even when you are sleeping. When you inhale your lungs get oxygen then it is sent through the blood to all parts of your body. As you are breathing, the oxygen makes carbon dioxide which is what you exhale.
When we start breathing the air goes through the windpipe and then it goes to the bronchial tubes and passes through the airways to let air in and out so you can breathe. The bronchi are tubes that lead from your trachea to your lungs. They have cartilage to support them. The right bronchus is shorter and wider than the left one. You breathe air and then the air goes into the larynx and then to the trachea which leads into the lungs and then you exhale it and it becomes carbon dioxide.
The alveoli are small pods of air found in the lung tissue of certain organisms. Pods have porous made of small cells which have fluids to diffuse. In the alveoli the oxygen is in the red blood cells and they will have lower concentration than the air in the lungs and alveoli. The alveoli does a gas exchange and it passes from the alveolus to the blood and then it binds with the haemoglobin in the red blood cells.
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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