05 Jan a. hepatic artery

Question 1

2.50 points out of 2.50

Question text

The enterogastric reflex can be triggered by

Select one:

a. distention of the duodenal wall.

b. the presence of food in the stomach.

c. increased pH in the duodenum.

d. the cerebral cortex.

e. the hormone secretin.

Question 2

In

0.00 points out of 2.50

Question text

Where does the majority of nutrient absorption occur?

Select one:

a. the stomach and duodenum

b. the duodenum and ileum

c. the jejunum and duodenum

d. the ileum and jejunum

Question 3

2.50 points out of 2.50

Question text

Arrange the following events in the order:

(1) absorption of lipids

(2) emulsification

(3) micelle formation

(4) digestion of lipids

Select one:

a. 1, 2, 3, 4

b. 3, 4, 2, 1

c. 4, 1, 2, 3

d. 2, 4, 1, 3

e. 2, 4, 3, 1

Question 4

2.50 points out of 2.50

Question text

Which of the following is NOT a muscle of mastication?

Select one:

a. temporalis

b. masseter

c. medial and lateral pterygoids

d. buccinator

Question 5

2.50 points out of 2.50

Question text

Enzymes secreted by the small intestine include

Select one:

a. disaccharidases.

b. secretin.

c. cholecystokinin.

d. bile.

e. histamine.

Question 6

2.50 points out of 2.50

Question text

In comparison to a low-density lipoprotein (LDL), a high density lipoprotein (HDL) contains

Select one:

a. less lipid.

b. less protein.

c. more cholesterol.

d. more carbohydrate.

e. more amino acids.

Question 7

2.50 points out of 2.50

Question text

Where is the uvula located?

Select one:

a. on the hard palate

b. hanging in the fauces

c. lateral walls of the fauces

d. under the tongue

Question 8

In

0.00 points out of 2.50

Question text

The diagram illustrates an absorptive structure in the duodenum. What does “A” represent?

Select one:

a. microvilli

b. epithelial cell

c. capillary

d. lacteal

e. villus

Question 9

2.50 points out of 2.50

Question text

Which of the following is an end product of protein digestion?

Select one:

a. glucose

b. amino acids

c. LDL molecules

d. micelles

e. nucleic acids

Question 10

2.50 points out of 2.50

Question text

Which of the following is an accessory organ of the digestive tract?

Select one:

a. pharynx

b. stomach

c. liver

d. large intestine

Question 11

In

0.00 points out of 2.50

Question text

The diagram illustrates an absorptive structure in the duodenum. What does “C” represent?

Select one:

a. microvilli

b. epithelial cell

c. capillary

d. lacteal

e. villus

Question 12

2.50 points out of 2.50

Question text

The figure illustrates bile drainage. What does “A” represent?

Select one:

a. hepatopancreatic ampulla

b. pancreatic duct

c. common hepatic duct

d. common bile duct

e. cystic duct

Question 13

2.50 points out of 2.50

Question text

The formation of HCl in the stomach involves the

Select one:

a. active transport of hydrogen ions from parietal cells into the lumen of the stomach.

b. exchange of sodium ions for hydrogen ions in the transport process.

c. active transport of chloride ions from parietal cells into the lumen of the stomach.

d. exchange of sodium and bicarbonate ions.

e. the combination of carbon dioxide and water.

Question 14

2.50 points out of 2.50

Question text

Which of the following is NOT a type of propulsion in the digestive tract?

Select one:

a. peristalsis

b. mass movement

c. deglutition

d. segmental contraction

Question 15

2.50 points out of 2.50

Question text

If the thoracic duct were tied off, which of the following classes of nutrients would not enter the circulatory system at their normal rate?

Select one:

a. amino acids

b. glucose

c. lipids

d. disaccharides

e. monosaccharides

Question 16

2.50 points out of 2.50

Question text

What does “C” represent on the diagram?

Select one:

a. small intestine

b. large intestine

c. esophagus

d. stomach

e. liver

Question 17

2.50 points out of 2.50

Question text

Which of the following lipoproteins contains the highest percentage of cholesterol?

Select one:

a. LDL

b. HDL

c. VLDL

d. chylomicron

e. CDL

Question 18

2.50 points out of 2.50

Question text

The gallbladder

Select one:

a. produces bile.

b. is attached to the pancreas.

c. stores bile.

d. produces secretin.

e. breaks down red blood cells.

Question 19

2.50 points out of 2.50

Question text

Which of the following is mismatched?

Select one:

a. segmental contractions – mix intestinal contents

b. peristaltic contractions – propel intestinal contents along G.I. tract

c. sympathetic nerve fibers – increase intestinal motility

d. distention of intestinal wall – increases intestinal motility

e. parasympathetic nerve fibers – stimulate secretion of pancreatic juices

Question 20

2.50 points out of 2.50

Question text

Which of the following is NOT part of a portal triad?

Select one:

a. hepatic artery

b. hepatic duct

c. hepatic portal vein

d. central vein