Ch 35 Review

Which are major pairs of salivary glands? (Select all that apply.) a. Parotid b. Parietal c. Submandibular d. Sublingual e. Pituitary

a, c, d. parotid, submandibular, sublingual

Which is associated with contraction of the gallbladder? a. Cholecystokinin b. Morphine c. Norepinephrine d. Gastrin

a. cholecystokinin

The action of bile is to a. emulsify fats. b. digest cellulose. c. convert sucrose. d. release free amino acids.

a. emulsify fats

Chief cells secrete a. pepsinogen. b. hydrogen chloride. c. intrinsic factor. d. gastrin.

a. pepsinogen

The propulsive movement of the GI tract is called a. peristalsis. b. transmission. c. contraction. d. constriction.

a. peristalisis

The sympathetic nerve endings in the GI tract secrete a. acetylcholine. b. histamine. c. gastrin. d. norepinephrine.

d. norepinephrine

The portion of the stomach that controls gastric emptying is the a. fundus. b. body. c. antrum. d. pylorus.

d. pylorus

The primary stimulus for pancreatic secretion is a. gastrin. b. histamine. c. acetylcholine. d. secretin.

d. secretin

Parasympathetic stimulation of the stomach would a. decrease motility. b. decrease hydrogen chloride secretion. c. inhibit acidity. d. stimulate motility.

d. stimulate motility

Pancreatic secretions are high in a. hydrochloric acid. b. bicarbonate ions. c. intrinsic factor. d. secretin.

b. bicarbonate ions

Which enzyme assists with protein digestion? a. Amylase b. Chymotrypsin c. Lactase d. Lipase

b. chymotrypsin

The structure and secretions of the salivary gland most closely resemble those of the a. gastric gland. b. exocrine pancreas. c. liver. d. gallbladder.

b. exocrine pancreas

Which statement regarding pepsin is true? a. It is secreted by parietal cells in gastric pits. b. It is secreted as an inactive proenzyme. c. It accomplishes most of the digestion of dietary protein. d. It is permanently denatured by a pH less than 4.0.

b. it is secreted as an inactive proenzyme

8. Most nutrient digestion and absorption occurs in the a. stomach. b. small intestine. c. large intestine. d. cecum.

b. small intestine

Failure of normal partitioning between the foregut and midgut can lead to a congenital condition known as a. tracheoesophageal fistula. b. esophageal atresia. c. intestinal atresia. d. anal agenesis.

c. intestinal atresia

Brush-border enzymes are produced by ________ cells. a. pancreatic acinar b. gastric mucosa c. intestinal epithelial d. goblet

c. intestinal epithelial

Carbohydrates are absorbed in the form of a. polysaccharides. b. disaccharides. c. monosaccharides. d. monoglycerides.

c. monosaccharides

Absorption of glucose and amino acids across the intestinal epithelium occurs by a. endocytosis. b. ATP-driven transporters. c. sodium-dependent carriers. d. passive diffusion.

c. sodium-dependent carriers

Most of the parasympathetic innervation of the GI tract is supplied by the a. hypoglossal nerves. b. enteric nervous system. c. vagus nerves. d. celiac ganglia.

c. vagus nerves

Older individuals may experience which change in the mouth? a. Increase in salivation b. Increase in taste for salt c. Increase in the number of papillae d. Increased exposure of dentin

d. increased exposure of dentin

How much fluid is secreted from the intestinal glands daily? a. 1/2 liter b. 1 liter c. 2 liters d. 4 liters

c. 2 liters

Which can be absorbed through the intestinal epithelia without further digestion? a. Sucrose b. Lactose c. Glucose d. Glycogen

c. glucose