Leigh Ives Human Body Systems Book

Page 1

The

INNER WORKINGS of

YOU! By Leigh Ives Period 1


Skeletal System Cartilage: Provide softer support than bones so you can move a little bit more, they also cushion joints

Joints: Where two bones meet. Some move (our shoulders, knees, and elbows are examples of moving joints) while others don’t (inside of the skull, there are many fixed joints).

Bones: Provide support for our bodies and help form our shape

X-Ray-o-matic

Ligament: a strong cord of tissue that connects the bones and keeps them in place


What does it do? The skeletal system is the framework of our bodies. It provides protection and support for our bodies. Without the skeletal system, we would just be a useless blob of flesh. (NOT maintaining homeostasis)

Watch Out! Septic Arthritis is caused by bacteria transported through your blood stream from an infected area, an injury, or surgery that makes your joints swell and hurt. You need your joints to move around, and you wouldn’t want them to be hurt! That would influence homeostasis because it would make it challenging to move, which would mean we would eat and have more energy then needed because we weren’t using it.

How does it connect with other systems?

Circulatory System The circulatory system connects with the skeletal system in many ways. The skeletal system protects the heart and other parts in the circulatory system, as well as making the red blood cells inside the bone marrow. Without the red blood cells made inside the bone marrow, the blood wouldn’t be balanced with all the materials needed, so homeostasis would be broken.

Respiratory System The respiratory system interacts with the skeletal system in a bunch of ways. The skeletal system protects vital parts of the respiratory system, like the lungs and trachea. There is actually cartilage supporting the trachea, because without it, it would collapse and our wind pipe would close, making us unable to breathe and take in oxygen. Without oxygen, the rest of our body can not operate, so this is an important part of maintaining homeostasis.


M U S C U L A R S Y S T E M

Cardiac Muscles: A specific tissue in your hear that pumps blood by contracting and relaxing.

Smooth Muscles: The opposite of skeletal muscles, your brain and body move this type of muscle without you even thinking about it.

Skeletal Muscles Skeletal muscles are the muscles you use when making your body move voluntarily. They are usually attached to a bone in the skeletal system. Together, the bone and muscle give your body strength and power. Tendons: Cords made of tough tissue that binds together bones and muscles.


What is does it do? The muscular system helps us move and keeps our hearts beating. Without movement, we wouldn’t be able to maintain homeostasis, and without our hearts beating our body will not get the nourishment it needs, and we will not be able to maintain homeostasis without he help of our muscular system.

CAUTION: Infectious mytosis is when the deep tissue of your muscle becomes infected with bacteria like MRSA. You need your muscles to move, and it creates abscess that is a) disgusting and b) makes it hard to move, so is you get infectious mytosis, your body will not be maintaining homeostasis.

How does it connect with other systems? Skeletal System: Together, the muscular and skeletal systems help our bodies move. Muscles connect to your bones and they move together. Homeostasis is maintained by the two systems working together because your bodies need to move to do anything, like eating and exercising, and by moving and doing those activities, the body is being balanced.

Digestive System: The muscular system helps out the digestive system by pushing the food into the different parts of the digestive system. Also, the digestive system provides the energy that the muscles need in order to work. The two system’s teamwork helps maintain homeostasis by making sure that the digestion process is running smoothly and efficiently.


Red Blood Cells: Cells in your blood that carry oxygen.

Circulatory System Red Blood Cells

Blood: Carries oxygen and nutrients to all parts of the body. Heart: Pumps blood through the circulatory system. Arteries: Big tubes that carry blood from the heart to the rest of the body.

Atrium: Located inside the heart, the left and right atria collect blood returning to the heart from the body.

Ventricle: Inside the heart, the left and right ventricles get blood from the atria and pumps blood out again.

Veins: Slighter smaller tubes than the arteries, these tubes take blood back to the heart. Capillaries: Tiny tubes that carry blood between cells.


Be Careful! HIV causes the white blood cells in the blood unable to work, which leaves the body with less protection then there should be (because white blood cells fight off bacteria and viruses in your blood), leaving the body unbalanced and NOT maintaining homeostasis.

How does it connect with other systems? Respiratory System: The respiratory and circulatory system work closely together. The respiratory system gets oxygen from the air and blood picks it up. Then, the blood carries the oxygen all around the body. Without the two systems working together, homeostasis could not be sustained because if there wasn’t oxygen in the blood, it would be unbalanced, therefore making the rest of the body unbalanced. Muscular System: The muscular system and the circulatory system rely on each other to maintain homeostasis. Cardiac muscles contract and relax to keep the heart pumping, and without the heart pumping the circulatory system wouldn’t work at all. By keeping the heart pumping, the muscular system gets the blood it needs to work from the circulatory system. If the muscular system didn’t help pump the blood, homeostasis couldn’t be sustained, because the balance of nutrients needed would be broken.

What does it do?

The circulatory system sends blood full of oxygen and nutrients around the body so it could function. It helps maintain homeostasis because without it, the body wouldn’t get the nutrients it needs and the body would be unbalanced.


Respiratory System

Pharynx: Also known as your throat. This passageway splits into the esophagus and trachea (esophagus is for digestive system). Larynx: Below the pharynx lies the larynx, also known as the voice box. When people talk, vocal cords in the larynx vibrate as air is released from the lungs and rushes over them. The vocal cords are two bands of smooth muscle. Trachea: The trachea, AKA windpipe., is the major airway of the body. It is made of hard cartilage. Lined with mucous membrane, it traps any foreign particles. It splits into the left and right bronchi. Bronchi: Feeds air into left and right lungs. Lined with mucous membrane and microscopic hairlike structures called cilia. Alveoli: After the right and left bronchi branch into smaller airways called bronchioles, air is carries into tiny air sacs called alveoli. The alveoli, which are surrounded by capillaries, let the oxygen go through their thin walls and oxygenates the


What does it do?

The respiratory system provides oxygen for our bodies. Without oxygen, our bodies would be all whacky and messed up, and there will NOT be homeostasis.

How does it connect with other systems? Nervous System: The brain controls how much oxygen is put into the blood so we don’t have too much or too little. Homeostasis is all about balance, so the oxygen level has to be exactly right in order for our bodies to maintain homeostasis.

Muscular System: The muscular system helps push the air that comes in and out of the respiratory system, and in return the respiratory system provides oxygen for the muscles to work. For the body to maintain homeostasis, everything has to be working smoothly, and the air supply helps with that. Without their teamwork, there will be no air supply, and no homeostasis. Illness that can hurt your respiratory system: Pneumonia causes your lungs to fill with fluid and no longer be able to take in enough oxygen. This will greatly effect homeostasis because it will cause your oxygen level to be lower than it should be, and there won’t be any balance.


Mouth: The teeth crush food into smaller pieces so you can swallow and digest it easily.

Digestive System

Saliva: Makes food softer so you can chew and swallow it easily. Esophagus: The tube that transports food down to the stomach. Stomach: Breaks down food into mush called chyme by squeezing the food with its muscles. Passes it on to the intestines.

Large Intestines: Removes water and salts from waste, then stores it until it can be released. Small intestines: Absorbs nutrients from mushed up food to be put into the bloodstream.

Pancreas: Makes pancreatic juice that break down proteins, changes starch, and digests fats.

Liver: Makes and stores energy, filters blood, and makes bile.


What does it do?

The digestive system provides nutrients for our body to turn into energy. If we didn’t have energy, our bodies would be unbalanced, and homeostasis would not be maintained.

How does it connect with other systems? Circulatory System: The blood in the circulatory system absorbs nutrients gotten from the digestive system so it could be distributed throughout the body. If the body doesn’t get enough nutrients, the body won’t be in balance, and there won’t be any homeostasis.

Respiratory System: The digestive system needs oxygen in order to work, which is supplied by the respiratory system. If there wasn’t any oxygen in the body the muscles and organs in the digestive system wouldn’t work, so there will be no homeostasis.

Eat a apple a day, and you probably won’t get… Cavities are holes in your teeth caused by tooth decay. Both bacteria and your diet contribute to the formation of cavities. Cavities can disturb homeostasis because with a hole in your teeth, it will be harder to chew, making it hard to swallow and process throughout the system, causing the body to be unbalanced.


Nervous System PNS: Peripheral Nervous System. Controls nerves and gathers information from the sensory receptors and relays that information to the CNS. CNS: Central Nervous System. Includes the brain and spinal cord. Interprets messages sent by the PNS and sends appropriate responses to the body. Brain: Controls the whole body. The brain is responsible for all of the processes in the body. Spinal Cord: Long bundle of nerves that carries nerve impulses back and forth between the brain to the rest of the body. Connects to brain at brain stem. Nerves: The most basic part of the nervous system, nerves are the only cell in the human body that can send “messages� from one part of the body to another. The exchange of information results in the actions of our muscles, glands, and organs


How does it connect with other systems? Digestive System: The brain controls when you fell the need to eat and drink, and the spinal cord sends the message that you need food from the brain to the rest of the body and vice versa. The brain also ensures your digestive system running smoothly and efficiently, so the brain can get the energy it needs to function. It maintains homeostasis because you need the right amount of food to get enough energy for your body, and if you didn’t, homeostasis wouldn’t be maintained.

What does it do?

The nervous system controls our bodies actions. If we didn’t have the nervous system, we couldn’t do anything, let alone maintain homeostasis!

Muscular System: The brain controls movement, and your muscles make us move. The messages to move go from the brain down your spinal cord and tells your muscles to move. If this connection was severed, then homeostasis can’t be sustained because the body won’t be able to move or do anything. Watch Out For… Meningitis is the inflammation of the meninges, the membranes that cover the brain and spinal cord. If it gets to some of the nerves, those nerves won’t work and some messages can’t be sent, which will cause the body to become unbalanced, and homeostasis will not be sustained.


Bibliography

Ballard, Carol. The Stomach and Digestive System. Austin, TX: Raintree Steck-Vaughn, 1997. Print. "Body Systems & How They Work Together." LIVESTRONG.COM. LIVESTRONG.COM, 16 Aug. 2013. Web. 23 Mar. 2014. Capaccio, George. Nervous System. New York: Marshall Cavendish Benchmark, 2010. Print. Dove, Laurie L. "How to Prevent Skeletal Infections." HowStuffWorks. N.p., n.d. Web. 23 Mar. 2014. Green, Dan. Human Body. New York: Kingfisher, 2011. Print. Hendrickson, Kirstin. "How Do the Digestive & Respiratory Systems Work Together?" LIVESTRONG.COM. LIVESTRONG.COM, 16 Aug. 2013. Web. 23 Mar. 2014. Horne, Steven B., DDS. "Dental Cavities (Tooth Decay) Causes, Symptoms, Treatment, Prevention - MedicineNet." MedicineNet. N.p., 1996. Web. 24 Mar. 2014. "How Are the Muscular & Nervous Systems Connected?" LIVESTRONG.COM. LIVESTRONG.COM, 16 Aug. 2013. Web. 23 Mar. 2014. "How Cystic Fibrosis Affects Breathing and the Lungs-Topic Overview." WebMD. WebMD, n.d. Web. 23 Mar. 2014. Lew, Kristi. Respiratory System. Tarrytown, NY: Marshall Cavendish Benchmark, 2010. Print. "Meningitis." KidsHealth. Ed. Nicole A. Green. The Nemours Foundation, 01 Apr. 2013. Web. 24 Mar. 2014. "MUSCULAR SYSTEM - MEAT ON THE BONES." Biology4Kids.com: Animal Systems: Muscular System. Andrew Rader Studios, 1997. Web. 23 Mar. 2014. "Myositis: Symptoms and Causes." WebMD. WebMD, n.d. Web. 23 Mar. 2014. "Your Heart & Circulatory System." KidsHealth. Ed. Steven Dowshen. The Nemours Foundation, 01 Jan. 2013. Web. 22 Mar. 2014. "Your Muscles." KidsHealth. Ed. Yamini Durani. The Nemours Foundation, 01 Oct. 2012. Web. 23 Mar. 2014.


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