Subject: Anatomy Topics: Stomach .... Shafa is returning to the room after college. Suddenly he collided with a fat man and fell down. When he got up, he was annoyed and said that there were many places in his
. It has become like an elephant. Let's find out the details about stomach today What is stomach? It is the most dilated part of digestive tube intervenes Between oesophaghs & duodenum & acts as a reservoir of food ..
. Situation of stomach ?? 1.epigastrium 2.left hypochondriac & 3.umblical region Capacity of stomach ?? 👉👉In new born: 30-50 ml ........... In adults: 1000-1500 ml Sir, while reading again, he said that you have to be able to do the presenting part Stomach presents WoTwo orifice 1.cardiac (2.5 cm to the left of median plane, behind left 7th costal cartilage, opposite T11 vertebra & 40 cm away from incisor teeth) 2.pyloric (1.25 cm right to the middle line at the lower border of L1 vertebrae) WoTwo curvature 1.Lesser curvature (two layers of lesser omentum attached with it) 2. Greater curvature: gives attachment a.gastro-phrenic ligament b.gastro-splenic ligament C. Anterior two layers of greater omentum WoTwo surface 1.anterior-superior surface: covered with peritoneam of greater sac 2.postero-inferior surface: covered with peritoneam of lesser sac except bare area .. AreBare area🙄🙄 It is a triangular non peritoneal area on the posterior surface near the cardiac orifice. Related to left crus of diaphragm ... Three subdivision: 1.fundus: entends beneath the left cupola of diaphragm upto the left 5th intercostal space. 2.body: 3.pyloric part.
(10 cm) Again subdivided into a.pyloric antrum (7.5cm) b.pyloric canal (2.5cm) C.pylorus Shaffer remembered that Sir had asked a common question to everyone today ❌❌Stomach bed Covered with peritoneum of lesser sac & forms a shallow fossa upon which stomach rests in recumbent supine position .. Structures forming stomach Bed NeMnemonic😜😜 💥💥Dr S3 killa Patients merciessly D = Diaphragm S3 = Spleen & splenic artery. Supra renal gland (left), splenic flexure K = kidney (left) P = Pancreas M = mesocolon (transverse) Mitu again forgot before the item nerve supply of stomach 7 Shafa read innervated by 💥sympathetic fibers (T6-T9 segments of spinal cord) Actions: 1.Vasoconstrictor to gastric vasculature 2. Inhibitory to gastric musculature 3.motor to pylorus & contrics the pyloric sphincter 4.convey painful sensation 💥parasympathetic fibers (derived from both vagus nerve) Actions: 1. secretomotor to gastric glands 2. Motor to gastric musculature 3. Relaxes pyloric sphincter 4.convey sensation of hunger & nausea If you can't supply artery, you won't pass 1.left gastric artery.
Supplies cardiac part of stomach. 2.right gastric artery: Supplies lower right part of stomach 3.short gastric artery: Supplies fundus of stomach. 4.Left gastro-epiploic artery: Supplies upper part of greater curvature 5. Right gastro-epiploic artery: supplies lower part of greater curvature. If you say blood supply, you have to write venous drainage 7 again Let's find out venous drainage of stomach ... Veins of stomach drain directly or indirectly into portal vein..as follows: 1. Right & left gastric vein drain into portal vein. 2.Right gastro epiploic vein: drain into superior mesentric vein. 3.Left gastro epiploic vein & short gastric vein drain into splenic vein .... ☀☀lymphatic drainage of stomach 👉👉1.to the left of vertical line drawn from cardiac orifice drain into pancreatico-splenic lymph node .. .2.upper 2/3 of right part of stomach drain into left gastric lymph node. .3.lower 1/3 of ight part of stomach drain into right gastro -epiploic lymph node & then pyloric lymph node. .4.from the pyloric part lymphatics drain into 3 directions. Hepatic group at porta hepatis .. Into pyloric group below pyloric orifice .. Leftinto left gastric lymph node ...
