Question

The presence of fats in the small intestine stimulates the release of _?_ which causes _?_.

a) salivary amylase, defecation pepsinogen,

b) fat digestion intestinal somatostatin,

c) inhibition of release of HCl CCK,

d) emulsification of fat in the duodenum

2)The Gastroileal Reflex.... (also known as Ileocecal Reflex)....

		results in increase of abdominal pressure
		momentarily inhibits breathing
		slows duodenal filling
		causes relaxation of ileocecal sphincter

3)

if the body did not produce HCl, which of the following would be significantly affected?

		carbohydrate digestion
		cellulose digestion
		fat digestion
		protein digestion

Answer 1

1. CCK , emulsification of fat in the duodenum

Explanation: Presence of fat in the small intestine causes the release of CCK from the small intestinal cells that stimulates the gall bladder to release bile into the duodenum. This bile reduces the surface tension and help in emulsification of the fats.

2. D) causes relaxation of ileocecal sphincter

Explanation: The gastroileal reflex is stimulated by the food in the stomach and gastric peristalsis. this reflex causes peristalsis in the ileum and the opening of the ileocecal valve that allows the emptying of the ileal contents into the large intestine, or colon.

3) D) Protein digestion