[Verse 1]
Cecum sits low in the right iliac fossa, that's your starting point
Appendix hangs beneath it, retrocaecal most of the time, take note
Ascending colon climbs the right flank, hepatic flexure bends acute
Transverse arcs across, splenic flexure higher, then descends to shoot
Down through the left, sigmoid loops and twists into the rectum's root
Three anatomical features mark it out from small bowel, absolute
Taeniae coli, three longitudinal bands that pucker up the wall
Haustra are the sacculations formed between them, six feet tall
Appendices epiploicae, fat tags hanging off the serosal face
These three distinguish colon, burn that picture into mental space
[Chorus]
Taeniae, haustra, epiploicae — three tags on the colon's coat
Ileocolic, middle, left colic — know which vessel feeds which boat
Marginal artery of Drummond running parallel along the wall
Griffiths' point, Sudeck's point — watershed zones, the critical calls
SMV and IMV drain into portal, that's the venous hall
Toldt's fascia is your plane — find it sharp, don't let the ureter fall
[Verse 2]
Arterial supply, let's map it properly, no room for approximation
Ileocolic feeds the cecum, appendix, ascending without hesitation
Right colic's variable — sometimes absent, check before you ligate
Middle colic from the SMA supplies the transverse, bifurcates
Left colic branches off the IMA, descending colon's fate
Sigmoid branches plural — three or four cascading down in state
Marginal artery of Drummond anastomoses all of these in line
Arc of Riolan cuts across the mesentery, a tortuous collateral sign
Griffiths' point splenic flexure watershed, perfusion thin right there
Sudeck's at the rectosigmoid junction — dual supply, handle with care
[Chorus]
Taeniae, haustra, epiploicae — three tags on the colon's coat
Ileocolic, middle, left colic — know which vessel feeds which boat
Marginal artery of Drummond running parallel along the wall
Griffiths' point, Sudeck's point — watershed zones, the critical calls
SMV and IMV drain into portal, that's the venous hall
Toldt's fascia is your plane — find it sharp, don't let the ureter fall
[Verse 3]
Lymphatics tier in four concentric rings outward from the bowel wall
Epicolic nodes on the serosal surface, paracolic next to haul
Intermediate nodes follow the named vessels toward the root
Principal apical nodes sit central — that's where CME hits the fruit
Complete mesocolic excision, sharp dissection in embryologic planes
Central vascular ligation at the apex captures all the draining chains
Toldt's fascia separates the mesocolon from the retroperitoneum clean
Behind that plane the ureter crosses, gonadal vessels intervene
Duodenum on the right, spleen at the splenic flexure lateral to the field
Autonomic nerves — hypogastric plexus — injury means sexual function sealed