Question

83.) Bile is forced up the cystic duct through the closing of the

sphincter of Oddi (hepatopancreatic)

ileocecal valve.

lower esophageal sphincter.

pyloric sphincter.

84.) Which of the following is the primary effect of CCK?

stimulates secretion of pancreatic juice rich in enzymes

stimulates secretion of water and bicarbonate rich pancreatic juice

stimulates contraction of the gall bladder

inhibits gastric motility

85.) Which of the following is the primary effect of gastrin?

stimulates gastric stem cells to become mucosal cells

stimulates secretion of pancreatic juice enzymes

stimulates parietal cells to secrete HCl

stimulates chief cells to secrete pepsinogen

86.) The arrival of chyme into the duodenum begins the _______ phase of digestion.

hepatic

gastric

cephalic

intestinal

87.) The thick, soupy liquid of partially digested food that leaves the stomach is called

bolus.

lipase.

chyme.

pepsin.

lacteal.

Answer 1

83) Answer is sphincter of oddi

Bile is forced up the cystic duct through the closing of sphincter of oddi(hepatopancreatic) is a muscular valve the controls the flow of digestive juices in the humans. It allows the flow from liver and pancreas to first part of the duodenum.By the closing of the this sphincter the bile is forced up into cystic duct.

Ileocecal valve is the valve that seprates the small intestine and large intestine so not involved there in the bile near cystic duct.

Lower esophageal sphincter is the bundle of muscle present in the lower part of oesophagus that prevent the gastric content backflow into the oesophagus.

The pyloric sphincter is the valve that connect the stomach to the intestine.

84) primary effect of CCK (cholecystokinin)

Answer (A) it stimulates the secretion of pancreatic juice rich in digestive enzymes from the pancreas bile and gall bladder.

It doesnot secrete water and bicarbonate rich pancreatic juice and doesnot inhibits the gastric motility it inhibits the gastric emptying.

85) primary effect of gastrin is that it stimulates the parietal cell to secrete HCL it doesn't stimulates chef cell to produce pepsinogen

86) (D) the arrival of chyme into the duodenum begins the intestinal phase because the duodenum is the part of small intestine and so from here intestinal phases starts which is about 10% of total.

Gastric phase is when bolus is in the stomach and when digestive content is in the oral cavity then it is called cephalic phase.