The inferior mesenteric plexus is derived chiefly from the aortic plexus.

It surrounds the inferior mesenteric artery, and divides into a number of secondary plexuses, which are distributed to all the parts supplied by the artery, viz., the left colic and sigmoid plexuses, which supply the descending and sigmoid parts of the colon; and the superior hemorrhoidal plexus, which supplies the rectum and joins in the pelvis with branches from the pelvic plexuses.

• The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses.
• Diagram of efferent sympathetic nervous system.

• Inferior mesenteric artery
• Superior mesenteric plexus

This article incorporates text in the public domain from page 987 of the 20th edition of Gray's Anatomy (1918)

• pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (pelvicsympathnerves)
• Introduction to Autonomics, Part 2 - Page 4 of 12 anatomy module at med.umich.edu
• figures/chapter_32/32-6.HTM: Basic Human Anatomy at Dartmouth Medical School

This neuroanatomy article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e