Gastrointestinal Physiology: Secretion II

Question 1

Where is the Na+ concentration higher, in the gall bladder bile or in the liver bile?

Answer 1

Gall bladder bile

Question 2

As the volume of bile increases in the gallbladder, the smooth muscle stretches with little increase in wall tension until we reach a

Answer 2

Critical volume

Question 3

At this volume, the wall tension rapidly increases and rhythmic contractions start, leading to

Answer 3

Gall bladder emptying

Question 4

Flows out of the liver, through the common bile duct and into the gallbladder or duodenum in response to the secretion pressure developed in the blind end of the biliary tract

Answer 4

Bile

Question 5

Secretion at the hepatocyte can produce a hydrostatic pressure within the canaliculi of

Answer 5

10-20mmHg

Question 6

The newly formed bile follows the path of least resistance into either the

Answer 6

Gall bladder or duodenum

Question 7

During the interdigestive period, most of the bile flows into the gallbladder due to higher muscle tone in the lower common bile duct and the

Answer 7

Sphincter of Oddi

Question 8

Upon eating, increasing amounts of bile flow directly into the duodenum because the muscle tone of the gallbladder increases while that of the lower common bile duct and sphincter of Oddi

Answer 8

Decreases