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Human Body Systems

skeleton the hard structure that supports and protects the human body
involuntary automatic movement; you do not control
voluntary brain sends message to muscle; you control the movements
muscular system the system of the body that is made up of all the muscles attached to bones; moves the body
nervous system the system that controls all other body systems
brain the control center of the nervous system
nerves carry messages from inside to outside the body
spinal cord a thick bundle of nerves along which messages travel between the brain and the rest of the body
circulatory system the body system that carries oxygen, food, and wastes throughout the body
artery the largest of the blood vessels that carry oxygenated blood away from the heart to all parts of the body
heart the organ inside the chest that pumps blood throughout the body
veins blood vessels that carry deoxygenated blood back to the heart
respiratory system the body system that takes oxygen from the air
lungs the pair of organs used for breathing found in the chest
digestive system the body system that breaks down food so that it can be used by the body
large intestine the lower part of the intestine including appendix, colon, and rectum; removes water from waste
digestion the process by which food is changed into substances that can be absorbed by the body
stomach the large organ like a bag or pouch into which food passes from the mouth and throat to begin the process of digestion
small intestine the part of the digestion system that extends from the stomach to the large intestine and completes the digestion of food
esophagus the passage for food from the mouth traveling to the stomach
Created by: Emily Fox
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