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 about each system, 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. 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.
Our bones are made up of 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 are bone strong and dense. The next layer of the bone is called cancellous bone (aka spongy bone) .This layer allows us 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 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 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, 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 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 studied was called a gliding joint. Gliding joints are places where two bones or more bones meet and slide past each other. Our joints 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 and move up and down. At the each joint a soft, squishy material between bones which keeps them from rubbing each other which would be painful The material is called cartilage. Cartilage which is bendable, and can also be found in our ears and nose. But all of this wouldn’t be possible if it weren’t for ligaments holding our bones together at each of our 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 have just really 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 hey are strong, yet lightweight. Thanks to joints, ligaments, and cartilage we are able to bend and, move throughout our body.
Muscular System Paper
The muscular system helps the human body move around and have fun. Let’s say if you want to run, walk, ride a bike, wave your arms around, or eat your favorite sandwich you use muscles. There are many different types of muscles and there all serve different purposes (e.g. movement, pumping blood, dilating your pupils). Some of these purposes are control 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 are muscles 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 muscles 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 arm. When one set of muscles (like the biceps) want to put the lower arm up, they contract or shrink while the when the triceps relax. When the triceps contract 17the 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 bone that they move! Tendons are flexible bands of tissue that blend into and enable them to move the bones that they were supposed to move. Although skeletal muscles are the only type of voluntary muscle, there are two different types of involuntary muscles.
Unlike voluntary muscles, involuntary muscles do things automatically without us knowing it. There are two examples of involuntary muscles. There are cardiac muscle and smooth muscle. Cardiac and smooth muscles are similar because they work automatically, by themselves. Cardiac muscles are the muscles found only in our heart, and are responsible for 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 many of our organs (e.g. intestines, esophagus, stomach, and bladder), and help move food through our body. Smooth muscles are also found in your eyes, which dilate your pupils as well as your blood vessels. Smooth muscles cells may look like one big cell, but are actually a bunch of smaller, smooth cells all grouped together (unlike the striated, skeletal cells). So clearly, there are many types of involuntary muscles in our body that do things that we had no idea about, including important tasks like pumping blood and digesting food!
The muscular system is a powerful system that allows to move, convert food into energy and circulate blood into our body. Our muscles make up over 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.
Circulatory System:
One of the many important systems in our body is the Circulatory system. It make sures we don’t bleed to death, delivers blood to the heart and brings us oxygen to the heart. Blood plays a very important role in the circulatory system, without it we wouldn’t be able to move throughout our body. But the most important part about blood is that it helps deliver oxygen to our heart so we can breathe. Blood is a very important fluid is that travels through the body. Without it we would die because we wouldn’t be able to have oxygen and the nutrients we need to survive. But the blood also needs white blood cells to live.
White blood cells are an important component of our blood system, which is also made of red blood cells, platelets, and plasma. Although your white blood cells account for only about 1 percent of your blood, their impact is significant. White blood cells, also called leukocytes, are essential for good health and protection against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are continually at war. They flow through your bloodstream to battle viruses, bacteria, and other invaders that threaten your health. When your body is sick and a place in the body is under attack, white blood cells come in to help destroy the harmful virus and prevent illness. But don’t forget about the red blood cells. Red blood cells play an important role in your health by carrying fresh oxygen throughout the body. The oxygen gives your blood its bright red color. Also they get rid of the waste in your body which you exhale out. But don’t forget about Platelets that help you so you don’t bleed to death. Platelets are the tiny blood cells that protect the cut from bleeding to death.
Respiratory System Paper:
In this paragraph you will discover how the Respiratory System supplies blood with oxygen and gets rid of the waste and carbon dioxide from the air breathed in.
The Respiratory System includes the nose, mouth, throat, larynx, trachea, bronchi, nasal passage, alveoli, nasopharynx, lungs, epiglottis, pharynx, vocal cords and the voice box. This whole process starts by the air going through the mouth or nose, then it passes through the nasopharynx. Next it goes down the oral pharynx, through the epiglottis, into the trachea, through the left and right bronchi which branches and rebranches into bronchioles which at last finally comes into a cluster of alveoli. But let me tell you about what each of these do. The nose or mouth also known as the oral cavity (in scientific terms) is the hollow cavity which allows food, water and air to enter. The mouth also contains other organs such as the teeth, tongue and the saliva bands that work together to help the ingestion and digestion of food and water. The mouth also plays a major role in the making of talking through the movements of the tongue, lips, and cheeks. Then it goes through the nasal passage. The nasal passage is a channel for airflow through the nose. The walls of the nasal passage are coated with respiratory mucous membranes, which contain innumerable tiny hair-like cells that moves waves of mucus toward the throat. Dust, bacteria, and other particles inhaled from the air are trapped by the mucus in the nose, carried back, swallowed, and dropped into the gastric juices so that any potential harm they might do is nullified. The organs of smell are made up of patches of tissue called olfactory membranes. The olfactory membranes are about the size of a postage stamp and are located in . a pair of clefts just under the bridge of the nose. Most air breathed in normally flows through the nose, but only a small part reaches the olfactory clefts to get a response to an odor. When a person sniffs to detect a smell, air moves faster through the nose, increasing the flow to the olfactory clefts and carrying more odor to these sensory organs. Next it goes through the epiglottis. Epiglottis is an intense bacterial or viral infection that results in swelling and inflammation of the epiglottis. The epiglottis is an elastic cartilage structure at the root of the tongue that prevents food from entering the trachea (windpipe) when swallowing. Epiglottis makes it difficult to breathe and grows quickly. If not treated, it can be hazardous because there is so much swelling that air cannot get in or out of the lungs. The most superb region of the larynx is the epiglottis, a leaf-shaped flap of elastic cartilage covered with epithelium. It connects to the larynx on its tapered inferior end and, except for a brief moment while swallowing, extends its wider superior end slightly into the pharynx just posterior to the tongue. During the process of swallowing, the epiglottis folds over to cover the glottis and prevents food from blocking the airway. Inferior to the epiglottis is the glottis region of the larynx, which contains the vocal folds. The largest cartilage in the larynx, the thyroid cartilage, supports the glottis. The thyroid cartilage is semicircular in shape with a prominent ridge extending from its anterior surface. This ridge is larger in males than in females and is visible through the skin of the neck, forming the structure known as the Adam’s apple. The thyroid cartilage is connected on its superior surface to the hyoid bone by a wide ligament known as the thyrohyoid membrane. The thyroid cartilage also anchors the anterior ends of the vocal folds, which attach to the inside of the thyroid cartilage at the body’s midline. But the Epiglottis would be nothing helpful to the body without the larynx. The larynx is a tough, flexible segment of the respiratory tract connecting the pharynx to the trachea in the neck. It plays a critical role in the respiratory tract by allowing air to pass through it while keeping food and drink from blocking the airway. The larynx is also the body’s “voice box” as it contains the vocal folds that produce the sounds of talking and singing. The vocal cords are folds of membranous tissue that project inward from the sides of the larynx to form a slit across the epiglottis in the throat, and whose edges vibrate in the airstream to produce the voice. But don’t forget about the voice box.The voice box, or larynx, is the portion of the respiratory (breathing) tract containing the vocal cords which produce sound. It is located between the pharynx and the trachea. The larynx, also called the voice box, is a 2-inch-long, tube-shaped organ in the neck. And then it goes through the trachea. The trachea (windpipe) is an immense, hollow tube that connects to the larynx/voice box, to the bronchi of the lungs. It is a crucial part to the of the body’s airway and has the important function of providing us air flow to the lungs for respiration. The trachea also begins at the inferior end of the larynx in the base of the neck. It is located along the body’s midline, anterior to the esophagus and just deep to the skin, so that it is possible to feel the larynx through the skin of the neck. From its origin at the larynx, the trachea extends inferiorly into the thorax posterior to the sternum. In the thorax, the trachea ends where it splits into the left and right bronchi, which continue onward toward the lungs.Viewed in cross section, the trachea is about one inch (2.6 cm) in diameter. It has a thin, membranous wall with C-shaped rings of cartilage embedded into it. Between sixteen and twenty cartilage rings are stacked along the length of the trachea, with narrow membranous regions spaced between the cartilage rings. The open ends of the cartilage rings face the posterior of the trachea near the esophagus. The mucous is the innermost layer and consists of ciliated pseudostratified columnar epithelium with many goblet cells. Goblet cells produce sticky mucus to coat the inner lining of the trachea and catch any debris present in inhaled air before it reaches the lungs. On the surface of the columnar cells, long, hair-like cilia beat together to push mucous away from the lungs like a microscopic conveyor belt. Mucus from the trachea, along with any trapped contaminants, makes its way to the larynx, where it is either expelled during coughing or swallowed and digested in the stomach.
But the don’t forget about the lungs, bronchi tubes and the alveoli where the exchange of gases and how air enters the lungs! You may think the trachea does many things that are remarkably important there is also the process of the air entering the lungs. The lungs are spongy organs that expand with air in our diaphragm when we inhale and shrink down when we exhale.
Digestive System Paper:
Welcome to the second to last system in the human body. The Digestive System where all the breakdown and absorption of food happens. But that's not all it does, it also puts all your waste together so your body can get rid of it. The digestive system is one of the important systems in your body because it does amazing things like digesting your food, absorbing nutrients and ending the process by disposing all of the waste at the end. The digestive system is of vital importance to the body. Without the ability to process foods, extract nutrients, and eliminate waste, every part of our body would to stop functioning. Even very small problems with our digestive system can be disastrous. Food must be processed in three ways: digestion, absorption, and elimination, and the digestive system is responsible for the accomplishment of all three of these functions.
The whole process starts with the mouth and teeth. Your mouth and teeth form your smile, which is often the first thing people notice when they look at you. But it does more than just form your smile, it does so much more. The mouth is essential for speech, eating, drinking and tasting. The main parts of the mouth are the teeth and the tongue which helps allows us to talk, taste, chew and more! But this wouldn’t be possible without the teeth. The jaw/teeth is one of the more important joints in our body, without it we couldn’t eat, chew and talk.
But what about the saliva which is made of 99.5% water and 0.5% electrolytes and other things as well. And there is bolus which is a large substance of chewed up food from the saliva. It breaks down food into particles of food which eventually dissolve. Without bolus, it would be exceedingly tough to live because the chewed up food wouldn’t get down to the stomach. But then once the bolus makes it journey to the stomach, it’s the stomachs time to shine! Plus the stomach also has a sidekick called the esophagus!
The esophagus looks like a long, thin tube that connects to the pharynx and passes the food throughout the body. The esophagus also passes the gastric juices through the body right to the peristalsis. Peristalsis is a wave-like movement that moves the food and gastric juices down. It also will wave a bolus down even if your are upside-down or sideways! Also it shuts off when your its not needed, isn’t that amazing? You may think that’s the coolest part of the digestive system, but there is so much more! The stomach is basically a waiting area for the waste. It fills up until it is full and then empties it out. And there is the chyme which is the liquid substance found in the stomach. It has the duty of doing the chemical breakdown of the bolus, food, gastric juices, water and acid. And there is the small intestine that is actually 10 feet long and runs throughout your body. You would think the small intestine would be very small, but it is only 1 inch in diameter. Amazingly the small intestine absorbs 90% of the nutrients in your body. Also the small intestine is twice as long as the large intestine
Nervous System Paper:
The whole thing wouldn’t be possible without the brain. The brain is important all over the body. It helps more than one system in the human body then just the Nervous System. It does so much more. That’s why the brain is one of the most vital parts in our body. Have you ever wondered about the thing in your body that makes you feel pain, controls your senses and makes you decide? Well that is what the Nervous System does. The Nervous System is system in the body which your body keeps you from going to the extreme of hurting yourself. But it doesn’t just do that, it does so much more! This includes the brain, nerves and the five senses. These are some of the most important parts in our nervous system.
There is balance and coordination, remembering, problem solving, thinking, feeling, and movement, and breathing, digestion, heart rate and blood pressure. In the next few paragraphs we will talk about these. But also you may not remember everything. The brain has many vital parts and duties in the human body. It does amazing and wonderful things like helping you feel pain, taste ice-cream, hear people, and see computers. This marvelous organ is has 3 parts to it that help you throughout your life. One of the 3 parts is the cerebrum. The cerebrum is one of the 3 parts of the brain. It’s does so much that it takes up most of the brain. It has the responsibility to control all of your remembering, problem solving, thinking, feeling, and moving. It also has some major roles then that. It does many amazing things then that.
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 funny 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!
Our bones are made up of 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 are bone strong and dense. The next layer of the bone is called cancellous bone (aka spongy bone) .This layer allows us 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 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 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, 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 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 studied was called a gliding joint. Gliding joints are places where two bones or more bones meet and slide past each other. Our joints 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 and move up and down. At the each joint a soft, squishy material between bones which keeps them from rubbing each other which would be painful The material is called cartilage. Cartilage which is bendable, and can also be found in our ears and nose. But all of this wouldn’t be possible if it weren’t for ligaments holding our bones together at each of our 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 have just really 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 hey are strong, yet lightweight. Thanks to joints, ligaments, and cartilage we are able to bend and, move throughout our body.
Muscular System Paper
The muscular system helps the human body move around and have fun. Let’s say if you want to run, walk, ride a bike, wave your arms around, or eat your favorite sandwich you use muscles. There are many different types of muscles and there all serve different purposes (e.g. movement, pumping blood, dilating your pupils). Some of these purposes are control 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 are muscles 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 muscles 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 arm. When one set of muscles (like the biceps) want to put the lower arm up, they contract or shrink while the when the triceps relax. When the triceps contract 17the 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 bone that they move! Tendons are flexible bands of tissue that blend into and enable them to move the bones that they were supposed to move. Although skeletal muscles are the only type of voluntary muscle, there are two different types of involuntary muscles.
Unlike voluntary muscles, involuntary muscles do things automatically without us knowing it. There are two examples of involuntary muscles. There are cardiac muscle and smooth muscle. Cardiac and smooth muscles are similar because they work automatically, by themselves. Cardiac muscles are the muscles found only in our heart, and are responsible for 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 many of our organs (e.g. intestines, esophagus, stomach, and bladder), and help move food through our body. Smooth muscles are also found in your eyes, which dilate your pupils as well as your blood vessels. Smooth muscles cells may look like one big cell, but are actually a bunch of smaller, smooth cells all grouped together (unlike the striated, skeletal cells). So clearly, there are many types of involuntary muscles in our body that do things that we had no idea about, including important tasks like pumping blood and digesting food!
The muscular system is a powerful system that allows to move, convert food into energy and circulate blood into our body. Our muscles make up over 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.
Circulatory System:
One of the many important systems in our body is the Circulatory system. It make sures we don’t bleed to death, delivers blood to the heart and brings us oxygen to the heart. Blood plays a very important role in the circulatory system, without it we wouldn’t be able to move throughout our body. But the most important part about blood is that it helps deliver oxygen to our heart so we can breathe. Blood is a very important fluid is that travels through the body. Without it we would die because we wouldn’t be able to have oxygen and the nutrients we need to survive. But the blood also needs white blood cells to live.
White blood cells are an important component of our blood system, which is also made of red blood cells, platelets, and plasma. Although your white blood cells account for only about 1 percent of your blood, their impact is significant. White blood cells, also called leukocytes, are essential for good health and protection against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are continually at war. They flow through your bloodstream to battle viruses, bacteria, and other invaders that threaten your health. When your body is sick and a place in the body is under attack, white blood cells come in to help destroy the harmful virus and prevent illness. But don’t forget about the red blood cells. Red blood cells play an important role in your health by carrying fresh oxygen throughout the body. The oxygen gives your blood its bright red color. Also they get rid of the waste in your body which you exhale out. But don’t forget about Platelets that help you so you don’t bleed to death. Platelets are the tiny blood cells that protect the cut from bleeding to death.
Respiratory System Paper:
In this paragraph you will discover how the Respiratory System supplies blood with oxygen and gets rid of the waste and carbon dioxide from the air breathed in.
The Respiratory System includes the nose, mouth, throat, larynx, trachea, bronchi, nasal passage, alveoli, nasopharynx, lungs, epiglottis, pharynx, vocal cords and the voice box. This whole process starts by the air going through the mouth or nose, then it passes through the nasopharynx. Next it goes down the oral pharynx, through the epiglottis, into the trachea, through the left and right bronchi which branches and rebranches into bronchioles which at last finally comes into a cluster of alveoli. But let me tell you about what each of these do. The nose or mouth also known as the oral cavity (in scientific terms) is the hollow cavity which allows food, water and air to enter. The mouth also contains other organs such as the teeth, tongue and the saliva bands that work together to help the ingestion and digestion of food and water. The mouth also plays a major role in the making of talking through the movements of the tongue, lips, and cheeks. Then it goes through the nasal passage. The nasal passage is a channel for airflow through the nose. The walls of the nasal passage are coated with respiratory mucous membranes, which contain innumerable tiny hair-like cells that moves waves of mucus toward the throat. Dust, bacteria, and other particles inhaled from the air are trapped by the mucus in the nose, carried back, swallowed, and dropped into the gastric juices so that any potential harm they might do is nullified. The organs of smell are made up of patches of tissue called olfactory membranes. The olfactory membranes are about the size of a postage stamp and are located in . a pair of clefts just under the bridge of the nose. Most air breathed in normally flows through the nose, but only a small part reaches the olfactory clefts to get a response to an odor. When a person sniffs to detect a smell, air moves faster through the nose, increasing the flow to the olfactory clefts and carrying more odor to these sensory organs. Next it goes through the epiglottis. Epiglottis is an intense bacterial or viral infection that results in swelling and inflammation of the epiglottis. The epiglottis is an elastic cartilage structure at the root of the tongue that prevents food from entering the trachea (windpipe) when swallowing. Epiglottis makes it difficult to breathe and grows quickly. If not treated, it can be hazardous because there is so much swelling that air cannot get in or out of the lungs. The most superb region of the larynx is the epiglottis, a leaf-shaped flap of elastic cartilage covered with epithelium. It connects to the larynx on its tapered inferior end and, except for a brief moment while swallowing, extends its wider superior end slightly into the pharynx just posterior to the tongue. During the process of swallowing, the epiglottis folds over to cover the glottis and prevents food from blocking the airway. Inferior to the epiglottis is the glottis region of the larynx, which contains the vocal folds. The largest cartilage in the larynx, the thyroid cartilage, supports the glottis. The thyroid cartilage is semicircular in shape with a prominent ridge extending from its anterior surface. This ridge is larger in males than in females and is visible through the skin of the neck, forming the structure known as the Adam’s apple. The thyroid cartilage is connected on its superior surface to the hyoid bone by a wide ligament known as the thyrohyoid membrane. The thyroid cartilage also anchors the anterior ends of the vocal folds, which attach to the inside of the thyroid cartilage at the body’s midline. But the Epiglottis would be nothing helpful to the body without the larynx. The larynx is a tough, flexible segment of the respiratory tract connecting the pharynx to the trachea in the neck. It plays a critical role in the respiratory tract by allowing air to pass through it while keeping food and drink from blocking the airway. The larynx is also the body’s “voice box” as it contains the vocal folds that produce the sounds of talking and singing. The vocal cords are folds of membranous tissue that project inward from the sides of the larynx to form a slit across the epiglottis in the throat, and whose edges vibrate in the airstream to produce the voice. But don’t forget about the voice box.The voice box, or larynx, is the portion of the respiratory (breathing) tract containing the vocal cords which produce sound. It is located between the pharynx and the trachea. The larynx, also called the voice box, is a 2-inch-long, tube-shaped organ in the neck. And then it goes through the trachea. The trachea (windpipe) is an immense, hollow tube that connects to the larynx/voice box, to the bronchi of the lungs. It is a crucial part to the of the body’s airway and has the important function of providing us air flow to the lungs for respiration. The trachea also begins at the inferior end of the larynx in the base of the neck. It is located along the body’s midline, anterior to the esophagus and just deep to the skin, so that it is possible to feel the larynx through the skin of the neck. From its origin at the larynx, the trachea extends inferiorly into the thorax posterior to the sternum. In the thorax, the trachea ends where it splits into the left and right bronchi, which continue onward toward the lungs.Viewed in cross section, the trachea is about one inch (2.6 cm) in diameter. It has a thin, membranous wall with C-shaped rings of cartilage embedded into it. Between sixteen and twenty cartilage rings are stacked along the length of the trachea, with narrow membranous regions spaced between the cartilage rings. The open ends of the cartilage rings face the posterior of the trachea near the esophagus. The mucous is the innermost layer and consists of ciliated pseudostratified columnar epithelium with many goblet cells. Goblet cells produce sticky mucus to coat the inner lining of the trachea and catch any debris present in inhaled air before it reaches the lungs. On the surface of the columnar cells, long, hair-like cilia beat together to push mucous away from the lungs like a microscopic conveyor belt. Mucus from the trachea, along with any trapped contaminants, makes its way to the larynx, where it is either expelled during coughing or swallowed and digested in the stomach.
But the don’t forget about the lungs, bronchi tubes and the alveoli where the exchange of gases and how air enters the lungs! You may think the trachea does many things that are remarkably important there is also the process of the air entering the lungs. The lungs are spongy organs that expand with air in our diaphragm when we inhale and shrink down when we exhale.
Digestive System Paper:
Welcome to the second to last system in the human body. The Digestive System where all the breakdown and absorption of food happens. But that's not all it does, it also puts all your waste together so your body can get rid of it. The digestive system is one of the important systems in your body because it does amazing things like digesting your food, absorbing nutrients and ending the process by disposing all of the waste at the end. The digestive system is of vital importance to the body. Without the ability to process foods, extract nutrients, and eliminate waste, every part of our body would to stop functioning. Even very small problems with our digestive system can be disastrous. Food must be processed in three ways: digestion, absorption, and elimination, and the digestive system is responsible for the accomplishment of all three of these functions.
The whole process starts with the mouth and teeth. Your mouth and teeth form your smile, which is often the first thing people notice when they look at you. But it does more than just form your smile, it does so much more. The mouth is essential for speech, eating, drinking and tasting. The main parts of the mouth are the teeth and the tongue which helps allows us to talk, taste, chew and more! But this wouldn’t be possible without the teeth. The jaw/teeth is one of the more important joints in our body, without it we couldn’t eat, chew and talk.
But what about the saliva which is made of 99.5% water and 0.5% electrolytes and other things as well. And there is bolus which is a large substance of chewed up food from the saliva. It breaks down food into particles of food which eventually dissolve. Without bolus, it would be exceedingly tough to live because the chewed up food wouldn’t get down to the stomach. But then once the bolus makes it journey to the stomach, it’s the stomachs time to shine! Plus the stomach also has a sidekick called the esophagus!
The esophagus looks like a long, thin tube that connects to the pharynx and passes the food throughout the body. The esophagus also passes the gastric juices through the body right to the peristalsis. Peristalsis is a wave-like movement that moves the food and gastric juices down. It also will wave a bolus down even if your are upside-down or sideways! Also it shuts off when your its not needed, isn’t that amazing? You may think that’s the coolest part of the digestive system, but there is so much more! The stomach is basically a waiting area for the waste. It fills up until it is full and then empties it out. And there is the chyme which is the liquid substance found in the stomach. It has the duty of doing the chemical breakdown of the bolus, food, gastric juices, water and acid. And there is the small intestine that is actually 10 feet long and runs throughout your body. You would think the small intestine would be very small, but it is only 1 inch in diameter. Amazingly the small intestine absorbs 90% of the nutrients in your body. Also the small intestine is twice as long as the large intestine
Nervous System Paper:
The whole thing wouldn’t be possible without the brain. The brain is important all over the body. It helps more than one system in the human body then just the Nervous System. It does so much more. That’s why the brain is one of the most vital parts in our body. Have you ever wondered about the thing in your body that makes you feel pain, controls your senses and makes you decide? Well that is what the Nervous System does. The Nervous System is system in the body which your body keeps you from going to the extreme of hurting yourself. But it doesn’t just do that, it does so much more! This includes the brain, nerves and the five senses. These are some of the most important parts in our nervous system.
There is balance and coordination, remembering, problem solving, thinking, feeling, and movement, and breathing, digestion, heart rate and blood pressure. In the next few paragraphs we will talk about these. But also you may not remember everything. The brain has many vital parts and duties in the human body. It does amazing and wonderful things like helping you feel pain, taste ice-cream, hear people, and see computers. This marvelous organ is has 3 parts to it that help you throughout your life. One of the 3 parts is the cerebrum. The cerebrum is one of the 3 parts of the brain. It’s does so much that it takes up most of the brain. It has the responsibility to control all of your remembering, problem solving, thinking, feeling, and moving. It also has some major roles then that. It does many amazing things then that.
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 funny 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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