Exocrine Pancreas

Question 1

Functional unit

Answer 1

Accinus = acinar cells (for enzymes synthesis, storage, secretion)
Duct system = modifies aqueous secretions

Question 2

Acinar cells

Answer 2

digestive enzymes produced on its endoplasmic reticulum

Question 3

Proteolytic enzymes

Answer 3

Chymotrypsinogen + trypsinogen (n the inactive zymogen form)

In the duodenum:
Trypsinogen → trypsin (activated by entero peptidases)
Chymotrypsinogen → chymotrypsin (activated by trypsin)

Question 4

Lipase

Answer 4

Digests triglycerides to monoglycerides, diglycerides + free fatty acids

Question 5

Amylase

Answer 5

Starch + maltose (disaccharide) to smaller carbs

Question 6

Vagal innervation to pancreas?

Answer 6

= stimulated enzyme secretion

Occurs when see/smell/taste food + stretch receptors

Question 7

Effect of acidic chyme entering duodenum?

Answer 7

Stimulates S cells to release secretin

Secretin causes pancreatic cell to secrete alkaline pancreatic juices

Question 8

Fatty acids in chyme trigger…

Answer 8

…duodenal cells to release cholecystokinin (CCK)
Causes digestive enzyme secretion in pancreas
Stimulates bile secretion via gall bladder contraction