[Verse 1]
From the foregut's origin the stomach takes its claim
Rotates ninety degrees clockwise, nothing stays the same
Dorsal mesogastrium swings left to form the lesser sac
The greater omentum drapes down like a surgeon's almanac
Coeliac axis feeds the proximal game
Left gastric, splenic, hepatic — remember every name
The vagus nerve descends, left trunk sits anterior
Damage that in dissection, outcomes grow inferior
[Chorus]
Foregut, midgut, hindgut — three roots, three supplies
Coeliac, superior mesenteric, inferior — memorise
Lymphatics chase the arteries back to their source
Para-aortic nodes complete the circuit and course
Danger zones lurk where the vessels anastomose
Know the embryology and nothing stays morose
Foregut, midgut, hindgut — three roots run true
Vagus, splanchnic, enteric — innervation in view
[Verse 2]
The duodenum hugs the pancreas retroperitoneal
C-shaped, four parts, surgical exposure is the deal
Superior mesenteric artery — the midgut's sovereign lord
From duodenum to two-thirds transverse colon on the board
Jejunum versus ileum — the vasa recta's long then short
Circular folds of Kerckring dense in jejunum, take note, report
The ileocaecal valve, a sphincter some contest
Meckel's diverticulum lurks two feet from the rest — antimesenteric crest
[Chorus]
Foregut, midgut, hindgut — three roots, three supplies
Coeliac, superior mesenteric, inferior — memorise
Lymphatics chase the arteries back to their source
Para-aortic nodes complete the circuit and course
Danger zones lurk where the vessels anastomose
Know the embryology and nothing stays morose
Foregut, midgut, hindgut — three roots run true
Vagus, splanchnic, enteric — innervation in view
[Verse 3]
The hindgut commences at the splenic flexure's bend
Inferior mesenteric supplies it to the end
Left colic, sigmoid branches, superior rectal descends
The rectum loses taeniae — a smooth cylindrical amends
Waldeyer's fascia posterior, Denonvilliers' in front
Dissect outside the fascia propria or you'll bear the brunt
Ureter crosses iliac vessels — a viridescent snare
Hypogastric plexus sits below — preserve it with care
[Bridge]
Now the variants — a surgeon's vellichor, that word for browsing maps of what's been missed before
Replaced right hepatic off the SMA — always scan the port
Inferior mesenteric vein draining into splenic — unexpected sort
The marginal artery of Drummond bridges left and right
Griffith's point at the splenic flexure — watershed site
Sudeck's point near rectosigmoid, blood supply grows thin
Know these anomalies before you ever cut the skin
[Chorus]
Foregut, midgut, hindgut — three roots, three supplies
Coeliac, superior mesenteric, inferior — memorise
Lymphatics chase the arteries back to their source
Para-aortic nodes complete the circuit and course
Danger zones lurk where the vessels anastomose
Know the embryology and nothing stays morose
Foregut, midgut, hindgut — three roots run true
Vagus, splanchnic, enteric — innervation in view