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Dissection of jejunum, ileum and colon

Arteries, veins and nerves of ileum, cecum, ascending colon and transverse colon, general view

Image #143-1

KEYWORDS: Large intestine, Peripheral nervous system, Stomach, Vasculature, Overview.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Dissection of jejunum, ileum and colon

Arteries, veins and nerves of ileum, cecum, ascending colon and transverse colon, general view

The jejunum and ileum have been pulled toward the left of the specimen. The transverse colon has been elevated. Lymph nodes and vessels, which were shown in view 141-1, have been removed. The nerves which accompany branches of the superior mesenteric vessels have been preserved insofar as possible.

1 .	Transverse colon (elevated)
2 .	Mesotransverse colon (dissected)
3 .	Middle colic artery (right branch; note absence of a separate right colic artery in this preparation)
4 .	Pancreaticoduodenal vein
5 .	Straight arteries
6 .	Ascending colon (pointer on taenia coli)
7 .	Position of duodenum (covered by fascia)
8 .	Upper pointer: Ileocolic artery Lower pointer: Superior mesenteric plexus
9 .	Colic branch of ileocolic artery
10 .	Ileocolic vein
11 .	Anterior cecal branch of ileocolic artery
12 .	Appendicular artery
13 .	Ileocecal junction
14 .	Cecum
15 .	Ileal branch of ileocolic artery
16 .	Ileum
17 .	Left branch of middle colic artery (accompanied by middle colic vein)
18 .	Superior mesenteric vein
19 .	Superior mesenteric artery (accompanied by superior mesenteric plexus)
20 .	Jejunum
21 .	Mesenteries (dissected)