Pancreas

Question 1

Physically describe the pancreas

Answer 1

Elongated, triangular (in x.s.) gland, 5” long, retroperitoneal

Question 2

How is the pancreas supplied with blood?

Answer 2

Celiac Trunk → Splenic artery → Pancreatic artery

Question 3

The endocrine pancreas is __% of it’s volume, and these cells are called the …

Answer 3

1%

Islets of Langerhans

Question 4

In the exocrine pancreas, cells in each ______ produce pancreatic juice

Answer 4

acinus

Question 5

How much pancreatic juice is made in a day?

Answer 5

1200-1500 ml/day

Question 6

Describe pancreatic juice

Answer 6

a clear, colorless fluid, H2O, salts, bicarb, enzymes

Question 7

What three things does pancreatic juice do?

Answer 7

1- Buffers HCl with bicarb
2- Stop action of pepsin
3- Create proper pH for small intestine enzymes

Question 8

Which pancreatic enzyme digest carbohydrates and starch?

Answer 8

Pancreatic amylase

Question 9

Which pancreatic enzyme digests lipids?

Answer 9

Pancreatic lipase

Question 10

What does colipase do?

Answer 10

Anchors pancreatic lipase to fat droplets

Question 11

Trypsinogen (via enterokinase) →

Answer 11

Trypsinogen (via enterokinase) → trypsin

Question 12

Chymotrypsinogen (via trypsin) →

Answer 12

chymotrypsin

Question 13

Procarboxypeptidase (via trypsin) →

Answer 13

carboxypeptidase

Question 14

What digests RNA?

Answer 14

Ribonuclease

Question 15

What digests DNA?

Answer 15

Deoxyribonuclease

Question 16

What is a small fold of mucosa at entrance of duodenal wall at the pancreatic duct?

Answer 16

major duodenal papilla

Question 17

What is a small fold of mucosa at entrance of duodenal wall at the accessory pancreatic duct?

Answer 17

minor duodenal papilla

Question 18

The ________ ampulla, where bile duct meets pancreatic duct, turns into sphincter of _____.

Answer 18

Hepatopancreatic

Oddi

Question 19

What two general mechanisms regulate pancreatic functions?

Answer 19

Neuroogical and hormonal

Question 20

In cephalic and gastric stages of gastric digestion, _____ impulses also go to pancreas, so _____ pancreatic secretions– Gets ready for acid with ______.

Answer 20

PNS
↑
bicarb

Question 21

When acidic chyme enters the small intestine enteroendocrine cells in duodenum secrete the hormone secretin, so __ pancreatic juice rich in bicarb ions

Answer 21

↑

Question 22

When fats and proteins enter the small intestine other enteroendocrine cells secrete CCK, so __ pancreatic juice rich in digestive enzymes and ejection of bile.

Answer 22

↑