Ascending colon
Organ supplied · Midgut T10–T11
Secondarily retroperitoneal midgut colon from the caecum to the hepatic flexure, fed by the ascending colic branch of the ileocolic and by the right colic when present, all joined through the marginal artery to the middle colic.
Traced from the start
Detail
- Supply
- Ascending colic branch of ileocolic, right colic, marginal artery
- Peritoneum
- Retroperitoneal, fused to the posterior wall along the fascia of Toldt
- Referred pain
- Periumbilical, T10–T11
When it goes wrong
Carcinoma of the caecum or ascending colon (wide lumen, liquid contents)
Occult bleeding and iron-deficiency anaemia rather than obstruction; right hemicolectomy takes the ileocolic ± right colic pedicle
Atherosclerotic thrombosis at the SMA origin
Caecum and ascending colon infarct along with the small bowel — unlike an embolus, which lodges beyond the colic branches
Practise this structure
1 question in the bank tagged Large Bowel.