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Lesson 4 Vocab

QuestionAnswer
Amylase An enzyme contained in saliva; it helps break down starch into simple sugars.
Chemical Digestion The digestion of food by enzymes and other chemicals produced by the body.
Enzyme A special protein produced by the body; usually helps digest food.
Mechanical Digestion The grinding, mixing, and tearing of food; begins in the mouth.
Saliva Produced by three pairs of glands in the mouth; moistens food when it enters the mouth.
Sphincter A ring of muscle; acts like doorways between the organs of the digestive system.
Trachea The tube to the lungs for air; also known as the windpipe.
Bolus A moist, soggy ball of food; what remains after chewing; it triggers a swallowing reflex.
Epiglottis A flap of muscle that closes over the windpipe when swallowing to prevent food from going to the lungs.
Created by: bman101
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