Hormones of Digestion Flashcards
1
Q
what cells secrete Gastrin?
A
G cells in the Antrum of the stomach
2
Q
what does Gastrin do?
A
gastrin increases HCl and Pepsinogen secretion and it has a trophic effect on the gastric mucosa
3
Q
what causes the release of Gastrin?
A
Distension of the Stomach (due to presence of food)
4
Q
what cells secrete CCK?
A
I cells in the duodenum
5
Q
what does CCK do?
A
causes contraction of the gallbladder, increases secretion of pancreatic juices and causes relaxation of the sphincter of Oddi
Decreases Gastric emptying and induces Satiety
6
Q
what causes CCK secretion?
A
partially digested proteins and triglycerides entering the duodenum
