Question 16

HCO3- is secreted from pancreatic cells into the pancreatic ductby which of the following apical membrane transporters?

HCO3-/Cl- antiport

HCO3-/Cl- ATP ase pump

HCO3-/H+ antiport

Question 17

All of the following occur during the Intestinal Phase ofdigestion EXCEPT:

Gastric motility increases

The secretion of Secretin raises intestinal pH.

The secretion of Cholecystokinin ensures micelle formation

Insulin is released from Beta cells of the pancreas

Question 18

Which of the following describes the interaction betweenextrinsic neurons and the enteric nervous system?

GI distention stimulates sensory afferent vagus neurons whichsynapse with the vagus motor neurons that connect to motor neuronsof the enteric nervous system

GI distention and chemoreceptors stimulate sensory afferentvagus neurons which synapse with the motor neurons of the myentericplexus

GI distention stimulates sensory afferent vagus neurons whichsynapse with the enteric nervous system causing peristalsis

GI distention stimulates sensory afferent vagus neurons whichrelease Acetylcholine causing contraction of the muscularisexterna

Question 19

Which of the following describes the action of a proton pumpinhibitor such as Omeprazole?

It blocks the H+/K+ ATPase pump on the apical membrane of theparietal cell

It blocks the binding of Histamine to its H2 receptor on thebasolateral side of the parietal cell

It blocks the steps of signal transduction involved in insertingH+/K+ ATPase pumps into the apical membrane of the parietalcell

It blocks the release of Histamine from Enterchromaffin-likecells

Question 20

Which of the following is co-transported with Na+ on the apicalmembrane of the small intestines?

Amino acids

Di and tripeptides

Fructose

Micelles

Peptides

Question 21

Someone with an obstruction of the common bile duct may exhibitwhich of the following?

An increase in blood levels of conjugated bilirubin resulting injaundice

An increase in unconjugated bilirubin in the blood resulting injaundice

Alcoholic fatty acid liver disease

Increased enterohepatic circulation of bilirubin

Increased excretion of urobilinogen

Question 22

Steatorrhea with macrocytic anemia may be caused by which of thefollowing?

A resected ilium

A common bile duct obstruction

Fatty liver disease

Hepatitis