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Digestive, Respiratory & Circulatory

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Term
Definition
Cell   the smallest unit of living matter; all living organisms are made up of cells  
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Tissue   a group of similar cells that work together at the same job; examples include muscle tissue, blood tissue  
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Organ   a group of tissues working together to do a certain job; the heart, the stomach, brain and lungs are all organs  
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Circulatory system   the blood transportation system  
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Arteries   vessels that carry oxygen from heart to rest the body  
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Blood   fluid that circulates throughout your body carrying oxygen and nutrients to your cell  
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Blood vessels   tubes to carry the blood  
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Capillaries   the tiniest vessels that connect arteries to vein  
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Heart   is the cardiac muscle that has two pumps working side by side; the heart pumps blood through the blood vessels  
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Plasma   watery substance that helps the other cells to flow  
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Red blood cells   blood cells that carries oxygen and removes wastes  
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White blood cells   fights germs  
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Veins   vessels that carry carbon dioxide back to your heart  
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Respiratory System   the body's breathing system  
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Nasal Cavity   part of the nose, warms and partially cleans air coming into the body  
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Nicotine   highly addictive drug found in tobacco that makes it extremely difficult for smokers to guit  
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Larynx   the voice box  
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Trachea   the "windpipe" which brings air to the lungs  
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Bronchial tubes   branching tubes from the trachea to each lung  
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Lungs   two balloon-type organs, located in the chest, that fill with air  
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Alveoli   tiny air sacs in the lungs  
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Diaphragm   muscle that forces air in and out of the lungs  
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Digestive System   system to break food down into tiny nutrients which your body uses fof energy  
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Anus   solid waste exits the system through this body opening  
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Esophagus   "the food tube", carries food from mouth to stomach  
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Large intestine   4' tube that recovers water and moves undigested food out of body  
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Liver   produces bile which also helps to break down food  
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Pancreas   produces digestive acids  
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Salivary glands   saliva produced here; saliva in the mouth moistens and starts to break down food  
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Small intestine   16-20' tube that send food nutrients into the blood stream  
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Stomach   muscle that mashes food and holds digestive acids to break down food  
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Created by: ssmelody
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