Digestive System Vocabulary

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Alimentary Canal
digestive tube that extends from the mouth to the anus
Bile
A substance produced by the liver that breaks up fat particles.
Calorie
A unit of heat used to measure the energy your body uses and the energy it receives from food
Chyme
Partially digested, semiliquid food mixed with digestive enzymes and acids in the stomach.
Feces
Solid body wastes expelled through the rectum and anus
Gastric Juice
A liquid that includes hydrochloric acid and pepsin and that is responsible for the chemical digestion of protein in the stomach.
Intestinal Villus (Villi)
Small, finger-like projections that protrude from the epithelial lining of the intestinal wall
Intrinsic Factor
A substance produced by the mucosa of the stomach and intestines that is essential for the absorption of vitamin B12.
Malnutrition
A state of poor nutrition
Mesentery
Structure that suspends the small intestine from the posterior body wall
Mineral
Elements found in food that are used by the body
Nutrient
Compounds in food that the body requires for proper growth, maintenance, and functioning
Pancreatic Juice
breaks down fats (lipase), carbs (amylase) and proteins (trypsin)
Peristalsis
Involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system.
Vitamin
Compounds found in food that help regulate many body processes
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