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31 Cards in this Set
- Front
- Back
chemical digestion
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process by which large food molecules are broken down into smaller food molecules
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mechanical digestion
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process by which large pieces of food are cut and crushed into smaller pieces
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Digestion
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process by which food is changed into forms the body can use
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mouth
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food enters the body through the mouth
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teeth
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enables you to bite and chew your food
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saliva
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liquid in the mouth that helps in digestion
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bolus
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a ball of food after you chew it up
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pharynx
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throat which breaks into two parts
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epiglottis
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flap of tissue that prevents food from entering the windpipe
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trachea
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your wind pipe that leads to your lungs
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esophagus
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tube the connects the mouth to the stomach
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peristalsis
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wavelike movement that moves food through the digestive tract
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rugae
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the contracting and expanding of the stomach to mechanically digest food
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chyme
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thick liquid form of food
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gastric juices
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juice produced in the stomach that contains mucus, pepsin and hydrochloric acid
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pepsin
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enzyme that digests proteins
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hydrochloric acid
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a strong acid that partly makes up the gastric juice in the stomach
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small intestine
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organ in the digestive system where most digestion takes place
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bile
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green liquid that breaks down fats and oils
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emulsification
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process of breaking down large droplets of fat into small droplets of fat
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lipase
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enzyme that digests fats and oils
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digestive juices and enzymes
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chemicals that control chemical reactions in the body.
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villi
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fingerlike projection on the lining of the small intestine
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absorption
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movement of food from the digestive system to the blood
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large intestine
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colon, part of the digestive tract
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rectum
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end of the large intestine which stores waste
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anus
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end of the rectum which eliminates waste
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pancreas
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large gland that lies below the stomach
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liver
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largest organ in the body which produces bile
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gall bladder
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a small sac under the liver which stores bile
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stomach
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J-shaped, baglike organ that stores food.
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