Q. Which of the following hormones are not released in duodenum?
a) Gastrin
b) Motilin
c) Somatostatin
d) Pancreatic YY
Somatostain is an inhibitory hormone and inhibits most of the things Secretin is released by acid in the duodenum and stimulates pancreatic fluid and bicarbonate secretion, leading to neutralization of acidic chyme in the intestine. Secretin also inhibits gastric acid secretion and intestinal motility. LES pressure is decreased by Secretin, CCK, Somatostatin and VIP