Stomach Flashcards
Location
Epigastric,umblical, left hypochondrium
T11-L1
CAPACITY
15.-2LIT
Orifaces
- Cardiac- T11/7th costal cartiledge
2. Pyloric-L1
Curvatures
1.Lesser curvature- Concave, RIGHT border
dependant part-angular notch/incisura
2.Greater Curvature- Convex, LEFT border, Attatchment for greater omentum, gastrosplenic and gastrophrenic ligaments
What part of stomach has all 3 cells
Body
Anterior relations
Left lobe of liver
Diraphram
Transverse colon
Anterior abdominal wall
Posterior relations
Lesser sac Stomach bed: Diaphram left kidney left adrenal Splenic artery Pancreas Transverse colon and mesocolon
Blood supply along lesser Curvature
Right gastric- Proper hepatic
Left gastric- Celiac trunk
Blood supply along greater cruvature
Right gastroeploic-gastroduodenal
Left gastroepiploic- splenic
Blood supply of fundus
Short gastric arteries- splenic
Venous drainage
Portal> sup. mesentric > splenic veins
SNS Nerve supply
T6-T10 VIA greater splanchnic, celiac and hepatic plexuses
vasomoter, pain
PSNS Nerve supply
Vagi via esophageal plexus
- Ant. gastric nerve > Left vagi > gastric + 2pyloric nerves
2, Post gastric nerve> Right vagi> gastric + celiac n.
Lymph Nodes
Superior gastric
Suprapyloric
Pancreaticolineal
Inferior Gastric
> Celiac> Thoracic nodes
Lining epithelium of stomach is
Simple columnar
Gastric mucosa contain
Gatric pits lined by simple columnar epithelium
Gastric epithelial cells lasts for
4-5 days
new arise from bottom of gastric pits
Cardiac Glands
-Simple branched tubular glands
-Mucus secreting
Gland:pit = 1:1
Gatric/ Oxyntic glands
-Most abundant
-simple branched tubular glands
- contains all 5 endocrine cells
Gland:pit= 3:1
Pyloric Glands
Simple branched tubular
Mainly consists of enteroendocrine cells
Gland:pit=1:3
Parietal Cells
Large spherical acidophilic cells having intracellular canalliculi secreting HCL and intrinsic factor
mostly in the central region of gastric glands
Mucus neck cells
Irregularly shaped
basophilic
secrete acidic mucin
present mainly in upper region of gastric glands
Cheif (zymogenic cells)
Present on basal half of cardiac glands
basophilic
contain apical zymogenic granules
Secrete pepsinogen
G cells
Unicellular endocrine glands
secrete gastrin
D cells
somatostatin and serotinin
Gastric pain is felt in the epigastrium because
Same supply of T6-T9
Peptic ulcer is common in
Blood group O
Ulcer typically occurs along
lesser curvature due to less blood supply more nerve supply thinner epithelium mucosa is not moveable
Gastric carcinoma is common along
greater curvature
Gastric carcinoma metasisizes to
Supraclvaicular lymph nodes
carcinoma is common in
Blood group A
thn and long vomitting occuers due to
pyloric obstruction
Hyposthenic stomach is more prone to
gastric ulcer
hypersthentic stomach is prone to
duodenal ulcer
