Test Bank Gastrointestinal
Physiology / Gastrointestinal
Physiology Test Bank
QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES (VERIFIED
ANSWERS) |ALREADY
GRADED A+
,A 2-year-old boy swallows a penny. The boy's mother checks
his stool for several days, but the
penny does not appear. Meanwhile, the boy has lost his
appetite and seems to have difficulty
eating. When a foreign object is swallowed, it often lodges at
which portion of the gut?
A. Anus
B. Duodenum
C. Ileocecal sphincter
D. Lower esophageal sphincter
E. Pharynx
F. Pyloric sphincter
G. Rectum - CORRECT ANSWER-D. Lower esophageal
sphincter
A 22-year-old man is fed intravenously for several weeks
following a severe automobile
accident. The intravenous feeding leads to atrophy of the
gastrointestinal mucosa most likely
because the blood level of which of the following hormones
is reduced?
,A. Cholecystokinin only
B. Gastrin only
C. Secretin only
D. Gastrin and cholecystokinin
E. Gastrin and secretin
F. Secretin and cholecystokinin - CORRECT ANSWER-B.
Gastrin only
, A 23-year-old man consumes a meal containing a large
amount of fat. At which of the following
locations are bile salts most likely to be absorbed?
A. A
B. B
C. C
D. D - CORRECT ANSWER-D. D
A 24-year-old male graduate student participates in a
clinical research study on intestinal
motility. Peristalsis of the small intestine
A. Involves contraction of smooth muscle behind the food
bolus and relaxation of smooth
muscle in front of the bolus
B. Mixes the food bolus
C. Is coordinated by the central nervous system (CNS)
D. Involves contraction of smooth muscle behind and in
front of the food bolus
E. Involves relaxation of smooth muscle simultaneously
throughout the small intestine - CORRECT ANSWER-A.
Physiology / Gastrointestinal
Physiology Test Bank
QUESTIONS AND CORRECT
DETAILED ANSWERS WITH
RATIONALES (VERIFIED
ANSWERS) |ALREADY
GRADED A+
,A 2-year-old boy swallows a penny. The boy's mother checks
his stool for several days, but the
penny does not appear. Meanwhile, the boy has lost his
appetite and seems to have difficulty
eating. When a foreign object is swallowed, it often lodges at
which portion of the gut?
A. Anus
B. Duodenum
C. Ileocecal sphincter
D. Lower esophageal sphincter
E. Pharynx
F. Pyloric sphincter
G. Rectum - CORRECT ANSWER-D. Lower esophageal
sphincter
A 22-year-old man is fed intravenously for several weeks
following a severe automobile
accident. The intravenous feeding leads to atrophy of the
gastrointestinal mucosa most likely
because the blood level of which of the following hormones
is reduced?
,A. Cholecystokinin only
B. Gastrin only
C. Secretin only
D. Gastrin and cholecystokinin
E. Gastrin and secretin
F. Secretin and cholecystokinin - CORRECT ANSWER-B.
Gastrin only
, A 23-year-old man consumes a meal containing a large
amount of fat. At which of the following
locations are bile salts most likely to be absorbed?
A. A
B. B
C. C
D. D - CORRECT ANSWER-D. D
A 24-year-old male graduate student participates in a
clinical research study on intestinal
motility. Peristalsis of the small intestine
A. Involves contraction of smooth muscle behind the food
bolus and relaxation of smooth
muscle in front of the bolus
B. Mixes the food bolus
C. Is coordinated by the central nervous system (CNS)
D. Involves contraction of smooth muscle behind and in
front of the food bolus
E. Involves relaxation of smooth muscle simultaneously
throughout the small intestine - CORRECT ANSWER-A.
