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
