STOMACH iMedscholar.com

iMedscholar.com Stomach a muscular bag forming widest and most distensible part of digestive tube. occupies Left Hypochondriac, Epigastric and Umbilical region. shape : somewhat J in normal active person J shaped in tall thin person Horizontal in broad, strong, very active person iMedscholar.com

iMedscholar.com External Features modify rule of 2 Orifices Curvatures Surfaces Parts

iMedscholar.com lower end of oesophagus vertebra T11 duodenum Cardiac Orifice Pyloric Orifice lower end of oesophagus vertebra T11 duodenum vertebra L1 iMedscholar.com

iMedscholar.com concave forms right border of stomach Lesser Curvature Greater Curvature concave forms right border of stomach attachment to lesser omentum most dependant part is incisura angularis/angular notch convex forms left border of stomach attachment to greater omentum cardiac notch at upper end iMedscholar.com

iMedscholar.com faces forwards and upwards Ant. Surface Post. Surface faces forwards and upwards faces backwards and downwards iMedscholar.com

line drawn downward to left from cardiac end to angular notch and further extended to greater curvature. Cardiac Part Pyloric Part sub divided into fundus and and body fundus - upper convex dome shaped part distended w/ gas. body - lies b/w fundus and pyloric antrum. mucous, peptic, oxyntic cells. sub divided into pyloric antrum and canal. separated from canal by sulcus intermedius. canal terminates at the pylorus. iMedscholar.com

iMedscholar.com Lesser Curvature by left and right gastric arteries Arterial supply Venous drainage Lesser Curvature by left and right gastric arteries Greater Curvature by left and right gastroepiploic artery Fundus by short gastric arteries Right and Left gastric veins into Portal Vein Left gastroepiploic and Short Gastric veins into Splenic vein Right gastroepiploic vein into Superior Mesentric Vein iMedscholar.com

iMedscholar.com Lymphatic Drainage (a) : Pancreaticosplenic nodes (b) : Left Gastric Nodes (c) : Right Gastroepiploic Nodes (d) : Sub-Pyloric Nodes, Hepatic Nodes, Coeliac Nodes iMedscholar.com *all nodes finally drain into Coeliac Nodes *learn the names and try to understand the next diagram

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iMedscholar.com P E P T I C ulcer i.e Pepsin & Acid Ulcer i.e Pepsin & Acid producing regions of GIT which includes Lower End of Oesophagus, Stomach, First part of Duodenum, Meckel's Diverticulum. common in Blood Group O iMedscholar.com