Heartburn results when the acidic contents of the stomach regurgitate into the esophagus creating a burning sensation because, unlike the stomach, the cells lining the esophagus do not
A) secrete hydrolytic enzymes
B) secrete mucus
C) contain connective tissue
D) contain epithelial cells
Answer: B) secrete mucus
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What is the primary organ that oxidizes alcohol?
a. Brain b. Liver c. Pancreas d. Digestive tract
Body mass index is calculated by:
a. dividing weight in pounds by height in centimeters. b. dividing weight in kilograms by height in meters squared. c. dividing height in inches by weight in kilograms. d. dividing weight in kilograms by height in meters.
Which is a peptide hormone that is produced in the stomach and stimulates appetite?
a. ghrelin b. lignin c. cholecystokinin d. amylin e. peptide YY
Iron has an important metabolic function in:
a. oxygen transport. b. thyroxine synthesis. c. calcium and phosphorus balance. d. neutralizing gastric secretions.