GI Tract II Flashcards
What is the Exocrine function of the Pancreas?
It takes salts + enzymes and releases them into the duodenum
The Pancreas releases bicarbonate, which functions to
Neutralize gastric acid
The Delta cells of the Pancreas function to
Stop active hormones
The colon absorbs
Water and inorganic ions
The colon is a rich source of
Bacteria
What are the GI hormones?
- Gastrin
- Secretin
- CCK
Gastrin is released from the
Mucosal cells when food is in stomach
Gastrin causes for the secretion of
- HCl from Parietal cells
- Pepsinogen from Chief Cells
Gastrin increases
Stomach motility
Secretin is secreted once
Chyme is delivered to the Duodenum
Secretin goes down the pancreas, stimulating the secretion of
Bicarbonate
Secretin causes the inhibition of
Stomach motility and acid release
Which hormone works in opposition to Gastrin?
Secretin
CCK is released from the
Intestinal mucosa
CCK travels to the Pancreas to release hormones like
Lipase
