Superior Hypogastric Plexus

Right and Left Hypogastric Nerves

Inferior Hypogastric Plexus

The Superior Hypogastric Plexus of the abdomen continues into the pelvis as the Right and Left Hypogastric nerves and the Inferior Hypogastric Plexuses. The superior hypogastric plexus contains predominantly afferent fibers and an undetermined number of parasympathetic neurons. At the level of the aortic bifurcation, the superior hypogastric plexus bifurcates into the right and left hypogastric nerves. The hypogastric nerves lie in the extraperitoneal connective tissue lateral to the rectum and medial to the internal iliac vessels. The inferior hypogastric plexuses are fan-like expansions of the hypogastric nerves. The inferior hypogastric plexuses may be divided into rectal and vesical parts in the male, and rectal, uterovaginal, and vesical parts in the female. The hypogastric nerves contribute the sympathetic fibers for the pelvic viscera.