Pancreatic Juice

Name the components of pancreatic juice (3)

1. water

2. NaHCO3

3. Digestive enzymes

Functions of NaHCO3 in pancreatic juice (3)

1. buffers acidic gastric juice in chyme

2. inactivates pepsin

3. increases pH so digestive enzymes can function

CHO digesting enzymes in pancreatic juice (1)

1. pancreatic amylase

Lipid digesting enzymes in pancreatic juice (1)

1. pancreatic lipase

Protein digesting enzymes in pancreatic juice (4)

1. trypsin

2. chymotrypsin

3. carboxypeptidase

4. elastace

What activates trypsin?

enterokinase/enteropeptidase

What activates chymotrypsin, carboxypeptidase and elastace?

trypsin

Nucleic acid digesting enzymes of the pancreatic juice (2)

1. ribonuclease

2. deoxyribonuclease

What stimulates the secretion of pancreatic juice in the cephalic and gastric phases of digestion?

PNS activation

What stimulates the secretion of pancreatic juice in the intestinal phase of digestion?

CCK and secretin secretion

What stimulates CCK and secretin secretion?

acidic chyme entering the duodenum