Hormones

Question 1

Gastrin

Answer 1

-released in response to food in our stomach (stretching of stomach)

-Medulla oblongata stimulates endocrine cells in stomach to secrete gastrin in circulatory system (blood)

-gastrin goes to stomach to secrete gastric juice

Question 2

Gastric Inhibitory Peptide (GIP)

Answer 2

-stimulates by presence of food in DUODENUM
-has opposite effects of gastrin
-inhibits gastrin secretion. SLOWS the rate of stomach emptying when the duodenum has food

Question 3

Secretin

Answer 3

-Chyme from stomach stimulates cells in duodenum to release secretin

-Primary function of secretin is to stimulate the PANCREAS to make NaHCo3 which neutrilizes acidic chyme

-Secondary function of secretin is to stimulate the liver and gallbladder to secrete bile

Question 4

Cholecytokinin (CCK)

Answer 4

-Duodenal cells secrete CCK when theres food in duodenum

-Primary function of CCK is to stimulate liver and gallbladder

-Secondary function of CCK is to stimulate pancreas to produce pancreatic enyzemes for pancreatic juice

Question 5

Enterocrinin

Answer 5

-Chyme from stomach stimulates cells is duodenum to release enterocrinin

-Enterocrinin stimulates mucus glands to make mucus in order to reduce acidicty of chyme

Question 6

Vasoactive intestinal peptide (VIP)

Answer 6

-Released in presence of food in the duodenum.

-dilates capillaries in active areas of intestinal tract to increase absorption of nutrients