stomach Flashcards
(30 cards)
3 types of stomach
simple
compound unisaccular/monogastric
compound multisaccular/multigastric
entire epithelium is glandular mucosa
simple
man and carnivores
simple stomach
small beginning part lines by cutaneous and the rest glandular
compound mono gastric
horse and pigs
compound mono gastric
compound multigastric stomach
ruminants
part of compound multi gastric that is glandular and is called the true stomach
abomasum
stomach consists of 3 regions
cardiac, fundus, pylorus
the mucosa and submucosa consists forms folds called __ that increase the surface area
rugae
the stomach is mostly what epithelium
simple columnar
stomach has mucus-producing cells not goblet cells
true
The epithelium dips down to form ____ which empty gastric glands
gastric pits
Predominant gastric gland occupying the entire fundus and body regions of the stomach
fundic glands
fundic glands consists of
isthmus, neck and base
Stem cells are found in what portion
isthmus and neck
Mucous neck glands are located where and have fewer mucin droplets
neck region
these cells are large, eosinophilic, triangular, and concentrated in upper half of fundic gland
parietal cells
parietal cells form ___ that is secreted into the lumen
HCL
both ___ and ____ stimulation stimulate HCL production
gastrin
parasympathetic
these cells contain basophilic cytoplasm in the basal region and zygomen granules in the apical region , predominate in lower half of fundic glands
Chief cells
Chief cells secrete
pepsinogen
converted into pepsin after being released into the acidic environment
least numerous cells, located in the bases of gastric glands, referred to as APUD cells
Enteroendocrine (argentaffin) cells
glands that are Located in a narrow zone around and near the esophageal opening into the stomach
cardiac
cardiac glands only occupy ___ the stomach in the pig
half