24.8 stomach

Question 1

what are gastric pits?

Answer 1

openings for gastric glands

Question 2

what lines gastric pits?

Answer 2

simple columnar epithelium

Question 3

what are the 5 types of cells of the gastric pits?

Answer 3

surface mucous cells
mucous neck cells
parietal cells
cheif cells
endocrine cells

Question 4

what are the surface mucous cells of the gastric pits responsible for?

Answer 4

produce mucus that protect the stomach lining from acid and digestive enzymes

Question 5

what do the mucous neck cells of the gastric pits do?

Answer 5

produce mucus

Question 6

what do the parietal cells of the gastric pits do?

Answer 6

which produce HCl and intrinsic factor

Question 7

what do the chief cells of the gastric pits do?

Answer 7

produce pepsinogen

Question 8

what do the endocrine cells of the gastric pits do?

Answer 8

produce regulatory hormones

Question 9

what are the 3 types of endocrine cells of the gastric pits?

Answer 9

enterochromaffin-like cells
gastrin-containing cells
somatostatin-containing cells

Question 10

what do the enterochromaffin-like cells do?

Answer 10

produce histamine which stimulates acid secretion by parietal cells

Question 11

what do gastrin-containing cells do?

Answer 11

secrete gastrin

Question 12

what do somatostatin-containing cells do?

Answer 12

secrete somatostatin which inhibits gastrin and insulin secretion