Cuarto Bloque: Gastrointestinal Hormones Flashcards
Cells that releases gastrin
G-cells
Place we can find gastrin
Mucosa of the antrum
Function of gastrin
Acid secretion
Growth of gastric mucosa
Increases motility
Cells that releases cholecystokinin
I-cells
Place we can find cholecystokinin
Small intestine (mostly duodenum and jejunum)
Cholecystokinin function
Gall bladder contraction
Pancreatic enzyme secretion
Relaxation of Oddi esphincter
Cells that releases secretin
S-cells
Place we can find secretin
Duodenum
Secretin function
Neutralizes acids in the duodenum
Cells that releases somatostatin
D-cells
Place we can find somatostatin
GI tract
Somatostatin function
Shuts down the release of many GI hormones
Cells that releases glucose-dependent insulinotropic peptide (GIP)
K-cells
Place we can find glucose-dependent insulinotropic peptide (GIP)
Duodenum and jejunum
Glucose-dependent insulinotropic peptide (GIP) function
Stimulates insuline release from pancreas
Cells that releases vasoactive intestinal peptide (VIP)
Neurons
Place we can find vasoactive intestinal peptide (VIP)
GI tract
Vasoactive intestinal peptide (VIP) function
Rises pH by inhibiting H+ secretion
Relaxation of smooth muscle
Cells that releases motiline
Enterocytes
Place we can find motiline
Stomach, intestine and colon
Motiline function
Promotes motility