Chapter 23: Digestive System Herlihy: The Human Body in Health and Illness, 7th Edition

Which of the following best describes the chewing of food?

a. Emulsification

b. Mechanical digestion

c. Peristalsis

d. Absorption

ANS: B

The stomach mixes and mashes a bolus of food that is called

a. feces.

b. flatus.

c. chyle.

d. chyme.

ANS: D

Bile is not found in which structure?

a. Cystic duct

b. Liver

c. Pancreas

d. Duodenum

ANS: C

Which of the following form(s) the large intestine?

a. Duodenum, ileum, and jejunum

b. Colon

c. Fundus, body, and pylorus

d. Sphincter of Oddi and ampulla of Vater

ANS: B

What is the site of most chemical digestion?

a. Stomach

b. Mouth

c. Cecum

d. Duodenum

ANS: D

Which of the following best describes the duodenum, jejunum, and ileum?

a. Colon

b. Biliary tree

c. Hepatic portal circulation

d. Small intestine

ANS: D

This organ synthesizes clotting factors, stores vitamins, detoxifies drugs, and helps

regulate blood glucose levels.

a. Pancreas

b. Liver

c. Stomach

d. Appendix

ANS: B

Enamel, dentin, and cementum are related to which structure?

a. Tooth

b. Liver

c. Colon

d. Villi

ANS: A

Which enzyme is found in saliva?

a. Bile

b. Trypsin

c. Ptyalin

d. Lipase

ANS: C

Which organ produces bile and secretes it into the hepatic ducts?

a. Pancreas

b. Gallbladder

c. Spleen

d. Liver

ANS: D

The wall of which structure secretes the disaccharidases?

a. Gallbladder

b. Duodenum

c. Pancreas

d. Stomach

ANS: B

Chemical digestion of protein begins in the ______ and is completed in the _______.

a. stomach, small intestine

b. small intestine, large intestine

c. small intestine, liver

d. stomach, large intestine

ANS: A

Starch digestion begins in the

a. stomach.

b. small intestine.

c. large intestine.

d. mouth.

ANS: D

Which of the following is true of the following: pepsin, trypsin, amylase, and lipase? All

are

a. proteases.

b. emulsifying agents.

c. hormones secreted by the GI tract.

d. digestive enzymes.

ANS: D