Tuesday questions:
Cindee Evenson
1. CCK causes gallbladder contractions and pancreatic enzyme secretions. Secretin increases bicarbonate secretions from the duct cells lining the pancreas. Gastrin acts on the parietal cells of the stomach to increase HCl and intrinsic factor secretion. GIP acts to inhibit gastric molarity, strength of contraction, and the release of HCl from the parietal cells of the stomach.

2. The GI tract has its own nervous has its own nervous system. The vagus nerve acts to increase motility and glandular secretions throughout the GI tract. The sympathetic nervous system acts to inhibit GI motility and glandular secretions.