Gastrointestinal Physiology

Question 1

The first step in the digestion process is _______________

Answer 1

ingestion

Question 2

________ is the swallowable form of food.

Answer 2

Bolus

Question 3

Digestion of carbohydrates starts in the oral cavity with the enzyme ____________

Answer 3

Ptyalin/ salivary amylase

Question 4

Bolus becomes _____________ as it exits the stomach to the intestines for further digestion and absorption.

Answer 4

Chyme

Question 5

Fructose transports from the intestinal lumen to the enterocyte via the transporter _________

Answer 5

GLUT 5

Question 6

HCI is secreted by parietal cells, and __________ is secreted by the chief cells of the stomach in the digestion of proteins.

Answer 6

Pepsinogen

Question 7

_________________ is the hormone released in the blood to stimulate the gallbladder to release bile for emulsification of fat.

Answer 7

Cholecystokinin

Question 8

Diffusion of monoglycerides in the enterocyte is made possible by the action of bile salts forming the __________ which is hydrophilic in the outside.

Answer 8

micelles

Question 9

70-80% of continence is maintained by the _______________________

Answer 9

internal anal sphincter

Question 10

The reflex which gives ample time for digestion by decreasing the motility in the stomach is the _____________________

Answer 10

enterogastric reflex