lesson 3
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| what are the fonctions of the digestive system | diigestion, absorbtion, and elimination
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| digestion | processes by which your body breaks down food intto small nutirient molecles
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| absorption | processses by whick nurtient molecules pass through the wall of your digestive system into your blood
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| large intestine | eliminates materials that are not absorbed
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| what is the role of thhe mouth, esophagus, and stomach | mouth, esophagus, and stomach are organs in which mechanical digestion is completed and chemical digestion begins
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| mouth | whe bitting info food chemical and mechanical digestion begin
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| slivia | fluid realased byy slaviary glands when eating,
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| what does slivia contain | a chemical that can break down starches into suggars aka enzymes
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| enzyme | protien that speeds up chemical rreactions in the body
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| how are enzymes different | each has a speffic sahpe that enables it to speed up only one reaction
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| esophagus | musclar tunal that connects the mouth to the stomach,
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| epiglotis | flat of tissue, seals off your windpipe and prevents food from going into the lungs
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| mucus | makes food easier to digest, lines the stomach
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| peristalsis | wabes of invoulentary muscle contracttions that push food towards the somach
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| stomach | mostly mechnical some chemical, pouch in the abdomen
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