Viscera (heart, lungs, liver, gastrointestinal tract)
Mesocolon
Mesocolon
- Origin
- Peritoneal duplicatures (transverse and sigmoid mesocolon) arising from the posterior abdominal wall
- Insertion
- Attaches to the transverse and sigmoid colon
- Function
- Suspends mobile colon segments and provides conduit for colic vessels, lymph nodes, and autonomic nerves
- Innervation
- Autonomic plexuses accompanying mesenteric vessels
- Movement & chain
- Provides physiological mobility for colon transit
- Palpation
- Not directly palpable
- Clinical
- Complete mesocolic excision (CME) in colon cancer surgery involves en bloc resection along anatomical embryological fascial planes for radical lymphadenectomy.
- Segmental innervation
- T10-L2 and S2-S4
- In clinical practice
- Perioperative care for segmental colectomies and laparoscopic mesocolic dissection
- Region in the model
- Viscera (heart, lungs, liver, gastrointestinal tract)