3-stomach Flashcards
is the stomach essential for life
no, but yes for a good quality of life
what are the regions of the stomach
fundus, body, antrum
what is the fundus
top of stomach
what is the body of stomach
middle of stomach
what is the antrum
bottom of stomach
what does pepsinogen do
converted to pepsin, helps digest proteins
what do chief cells secrete
pepsinogen
where are chief cells
all regions of stomach
what is released by G cells
gastrin
where are gastric glands
antrum
how does gastrin work
stimulates HCl production by parietal cell and GI motility
what do ECL cells release
histamine
where are ECL cells
all stomach areas, more so in the antrum
what do d cells release
somatostatin
what does somatostatin do
negative regulator of HCl secretion
where are d cells
everywhere in stomach, more in antrum
what does intrinsic factor do
critical for B12 absorption in the ileum
where is HCl produced
fundus and body
where is mucous, pepsinogen and HCl released
fundus and body
where is mucous, pepsinogen and gastrin released
antrum
what is the fundus and body made from
thin layer of smooth muscle
what is the antum made of
thick smooth much
what does histamine do
stimulates HCl production
what do parietal cells do
secrete HCl and IF
