Multiple Choice Questions (MCQ)

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Category: Surgery--->Small Intestine
Page: 2

Question 6# Print Question

How are the digestion products of carbohydrates, such as glucose, galactose, and fructose, absorbed through the intestine?

A. By passive diffusion across enterocyte plasma membranes
B. By facilitated diffusion via specific transporters such as sodium-glucose cotransporter 1 (SGLT1), glucose transporter 2 (GLUT2), and glucose transporter S (GLUTS)
C. By endocytosis of enterocytes on the villus
D. By facilitated diffusion through tight junctions between enterocytes

Question 7# Print Question

What does the "enterohepatic circulation" refer to?

A. The superior mesenteric-portal venous circuit
B. The secretion of cholesterol in the bile and its reabsorption in the distal ileum
C. The secretion of bile acids by the liver and their reabsorption in the distal ileum
D. The secretion of cholecystokinin by the jejunum and its stimulation of bile flow

Question 8# Print Question

The secretin-glucagon family of gut hormones includes all of the following structurally related peptides EXCEPT:

A. Somatostatin (SST)
B. Glucose-dependent insulinotropic polypeptide ( GIP)
C. Glucagon-like peptide-1 (GLP-1)
D. Vasoactive intestinal polypeptide (VIP)

Question 9# Print Question

The most common cause of small bowel obstruction is:

A. Incarcerated hernia
B. Crohn's disease
C. Malignancy
D. Postoperative adhesions

Question 10# Print Question

A closed-loop obstruction is particularly dangerous because:

A. Intraluminal pressure rises high enough to cause ischemia and necrosis
B. The obstruction is painless
C. Bacterial overgrowth results in sepsis
D. The obstructive segment is not apparent on imaging studies

Category: Surgery--->Small Intestine
Page: 2 of 5