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A&P CH15 key terms
A&P CH15 Digestion and Nutrition
Term | Definition |
---|---|
alimentary canal | the tubular portion of digestive tract that leads from the mouth to the anus |
bile | fluid secreted by liver and stored in gallbladder |
calorie | a unit used to measure heat energy and the energy content of foods |
chyme | semi fluid mass of partially digested food that passes from the stomach to the small intestine |
feces | material expelled from the digestive tract during defecation |
gastric juice | secretion of the gastric glands within the stomach |
intestinal villus | small, finger-like projections that extend into the lumen of the small intestine |
intrinsic factor | a substance that the gastric glands produce to promote absorption of vitamin B-12 |
malnutrition | physical symptoms resulting from lack of specific nutrients |
mesentery | a fold of peritoneal membrane that attaches an abdominal organ to the abdominal wall |
mineral | element not found in organic compounds that is essential in human metabolism |
nutrient | a chemical that the body requires from the environment |
pancreatic juice | digestive secretions of the pancreas |
peristalsis | rhythmic waves of muscular contraction in the walls of certain tubular organs |
vitamin | an organic compound,, other than a carbohydrate, lipid, or protein, required for normal metabolism but that the body cannot synthesize in adequate amounts |