Stomach cells Flashcards
1
Q
mucus
A
protects lining
2
Q
parietal cells
A
gastric acid (HCl)
intrinsic factor (Ca++ absorption)
3
Q
enterochromaffin-like cell
A
histamine (stimulates acid)
4
Q
chief cells
A
pepsin (ogen)
gastric lipase
5
Q
D cells
A
somatostatin (inhibits acid)
6
Q
G cells
A
Gastrin (stimulates acid)
7
Q
Gastric secretions
A
Pepsinogen
- inactive precursor of proteolytic enzyme pepsin
HCl
- promotes hydrolysis of food
- converts pepsinogen to pepsin
Intrinsic factor
- glycoprotein used for absorption of vitamin B
Hormone gastrin and others
- produced by entereoendocrine cells in gastric epithelium
