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Peptic ulcer (factors which disrupt the epithelium (NSAIDs., Ethanol.,…
Peptic ulcer
factors which disrupt the epithelium
NSAIDs.
Ethanol.
Aspirin.
Infection.
Stress.
factors which increase the resistance of the stomach to HCl secretion
. Tight junction
Rich circulatory bed
Thick mucus layer
Rich circulatory bed
more prostaglandin which
enhances secretion of mucus
Gastroduodenal Junction
The difference between stomach
and duodenum
pylorus
projection which is deep
(pits) unlike the projection
(villi) in the right which goes
outward
there is
mucosa and submucosa , submucosa
in the right is wider and there are
submucosal glands
(Brunner’s glands in the duodenum
the stomach has three layers of smooth muscle
, these layers become
two, because the circular layer
will form the pyloric sphincter
Peptic ulcer is an injury of the gastric epithelium