Sos: Stomach Flashcards
bezoar
hair ball
4 regions of stomach
cardia
fundus
body (corpus)
Antrum (pyloric)
longitudinal folds within stomach mucosa that disappear when full
rugae
stomach pacemaker
ICC
initiates peristaltic movement of chyme
ICC
this stomach layer shortens the stomach
longitudinal layer
this stomach layer allows chyme to travel to pyloric sphincter
circular layer
this stomach layer allows for churning of chyme aiding in digestion
oblique layer
purpose of this in stomach is to reduce friction; thin connective tissue covered w/ serous epithelium
serosa
L: liver
middle: stomach
R: spleen
body of pancreas meets where
near stomach and duodenum
tail of pancreas always meets where
at root of spleen
explain Nutcracker syndrome
pt has enlarged testicle due to L renal vein being squeezed b/t aorta and superior mesenteric a. (pt. lost a lot of weight quickly and lost mesenteric fat)
2 retroperitoneal organs
pancreas and duodenum
lesser omentum 2 ligaments attach where
liver to stomach and liver to duodenum
nerve supply to stomach
vagus n. and celiac trunk
main arteries to stomach (name 5)
celiac a.
gastric a.
splenic a.
common and proper hepatic a.
gastroepiploic a.
lymphatic drainage of stomach goes where
Cisterna chyli to thoracic duct
what sympathetics supply the stomach
greater splanchnic nerves (T5-9)
how do you know you are in body of stomach when looking at histologic slide
see gastric pits and glands
4 main layers of stomach from inside to outside
mucosa
submucosa
muscularis propria/externa
serosa
body or antrum of stomach
antrum (not as dense)
3 layers of stomach mucosa
epithelium
lamina propria
muscularis mucosae
body (corpus) of stomach contains what 4 cells
parietal
chief
endocrine (D and G cells)
mucous
main cell in intestine
goblet cell
these cells make HCl and intrinsic factor
parietal cells
what is needed for resorption of vitamin B12
intrinsic factor
these cells make pepsinogen to pepsin
chief cells
D cells make what
somatostatin
G cells make what
gastrin
inhibits acid secretion
somatostatin
stimulates acid secretion
gastrin
what substance is secreted when we are hungry and increases appetite
Ghrelin
product used for protein digestion
pepsin
product used for carbohydrate digestion
amylase
product used for fat digestion
lipase
used to neutralize stomach acid before entering duodenum
HCO3 (bicarbonate)
part of stomach
L: body (corpus)
R: antrum
parietal cells found where
body (corpus of stomach)
gastrin found in what part of stomach
antrum