A&p 2 Test 4 Pg 79-81

Front 1

Cephalic phase

Back 1

In this phase the Function is to prep the stomach to digest food that enters

Duration is brief

Activates at sight smell or thought of food

Action is salivary glands secrete saliva, gastric pits secrete acid and pepsinogen, G-apud cells secrete gastrin

Front 2

Gastric phase

Back 2

Duration is 2-3 hours

Mechanism is neural and hormonal

Action is increased mucus, acid, and enzyme secretion in the stomach.

Front 3

Intestinal phase

Back 3

Duration is long, several hours after gastric phase

Mechanism is neural and hormonal- presence of carbs, peptides, lipids and acids

Action is the enterogastric reflex

Front 4

Secretin

Back 4

______ shuts off gastric cavity, increases pancreatic juice secretion. Relaxes the sphincter and decreases gastric activity.

Front 5

CCK

Back 5

This increases secretin of bile from full bladder. Decreases gastric activity and relaxes sphincter.

Front 6

Pancreas

Back 6

The _____ is a double or mixed gland because it is both endocrine and exocrine in function

Front 7

Endocrine function

Back 7

_____ _____ are pancreatic islets that contain alpha cells that secrete glucagon and beta cells that secrete insulin.

Front 8

Exocrine function

Back 8

_____ ______ are acrobat cells that produce 1 L a day of pancreatic juice that is secreted into the duodenum to aid in digestion.

Front 9

Large intestine

Back 9

Also called the colon, absorbs most water from feces to compact it, absorb vitamins that are produced by bacteria and stores fecal waste until defecation occurs

Front 10

Gall bladder

Back 10

Small sac about 4 inches long and can store and concentrate bile by absorbing some of the water.

Front 11

Liver

Back 11

_____ is the largest visceral organ and weighs 3 lbs. also synthesizes numerous plasma proteins for osmotic pressure and clotting factors.

Front 12

Bile

Back 12

______ is a thick and viscous fluid that contains salt, lipids, water, ions, and bilirubin that aid in lipid digestion by emulsifying fats.