[Verse 1] From the cardia down where the esophagus drops, The angle of His cuts a notch where the Z-line stops, Phrenoesophageal membrane holds the hiatus tight, Left crus of the diaphragm bracing on the right. Fundus domes above, then the body sweeps long, Incisura angularis — that notch on the lesser curve belongs, Antrum narrows down to where the pylorus stands, And the vein of Mayo marks it plain as an outstretched hand. [Chorus] Cardia, fundus, body, antrum, pylorus in line, Lesser curve and greater curve define the design, Gastrohepatic, gastrocolic, gastrosplenic — name your plane, Open the lesser sac and read the posterior wall again, Pancreas, splenic vessels, left kidney behind, Transverse mesocolon — six structures, six signs. [Verse 2] The lesser omentum hangs from the hepatoduodenal gate, Pars flaccida — thin and soft, pars condensa holds the weight, Watch the aberrant left hepatic artery hiding in that fold, Cut it without caution and your liver runs cold. Gastrocolic ligament — your avascular working door, Pull it wide and easy, you're walking the lesser sac floor, Gastrosplenic carries the short gastrics along the spleen, Gastrophrenic anchors high where the fundus leans. [Chorus] Cardia, fundus, body, antrum, pylorus in line, Lesser curve and greater curve define the design, Gastrohepatic, gastrocolic, gastrosplenic — name your plane, Open the lesser sac and read the posterior wall again, Pancreas, splenic vessels, left kidney behind, Transverse mesocolon — six structures, six signs. [Bridge] Now the stomach bed — press your palm against the back, Pancreas laid flat across that retroperitoneal track, Splenic artery coiling, splenic vein running straight, Left adrenal, left kidney sitting quiet at the gate, Diaphragm above, spleen tucked to the left side, Transverse mesocolon — the inferior relation, don't misguide, Colonic injury waits for surgeons who forget that floor, So name it, trace it, know it cold before you cut and explore. [Verse 3] Four coats from lumen out — and the order matters here, Mucosa first, then submucosa, that's the layer surgeons revere, Submucosa holds your sutures when the others tend to tear, Muscularis runs oblique, then circular, then square. Oblique fibers sling the fundus, circular guards the pyloric gate, Longitudinal wraps the outside — three-ply weight, Serosa seals it all except two bare strips along the curves, Where ligaments attach and the peritoneum swerves. [Chorus] Cardia, fundus, body, antrum, pylorus in line, Lesser curve and greater curve define the design, Gastrohepatic, gastrocolic, gastrosplenic — name your plane, Open the lesser sac and read the posterior wall again, Pancreas, splenic vessels, left kidney behind, Transverse mesocolon — six structures, six signs.
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