Give names of various gastrointestinal hormones and describe their functions.

(N/A) The activities of the gastrointestinal tract are under neural and hormonal control for proper coordination of different parts.
Hormonal control of the secretion of digestive juices is carried out by local hormones produced by the gastric and intestinal mucosa.

$1$. Hormone	$2$. Function
Gastrin	Acts on the gastric glands and stimulates the secretion of hydrochloric acid and pepsinogen.
Secretin	Acts on the exocrine pancreas and stimulates the secretion of water and bicarbonate ions.
Cholecystokinin $(CCK)$	Acts on both the pancreas and the gallbladder and stimulates the secretion of pancreatic enzymes and bile juice,respectively.
Gastric Inhibitory Peptide $(GIP)$	Inhibits gastric secretion and motility.