Dissection of jejunum, ileum and colon

Arteries, veins and nerves of sigmoid colon, close-up view

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Image #144-2

Dissection of jejunum, ileum and colon Arteries, veins and nerves of sigmoid colon, close-up view The lower part of the preceding dissection (144-1) is seen here in a close-up view. 1 . Inferior mesenteric ganglion 2 . Inferior mesenteric artery (pointer at level of origin of left colic artery) 3 . Inferior mesenteric lymph nodes 4 . Root of mesenteries 5 . Inferior mesenteric plexus 6 . Right common iliac artery 7 . Sigmoid artery 8 . Superior hypogastric plexus 9 . Mesosigmoid colon (dissected) 10 . Straight arteries 11 . Inferior mesenteric vein 12 . Position of ureter (covered by fascia but visible passing downward into pelvis) 13 . Psoas major muscle (covered by fascia) 14 . Descending colon 15 . Marginal artery 16 . Sigmoid colon