cavernous nerve of penis

n.
  1. Either of two nerves, designated major and minor, that are derived from the inferior hypogastric plexus, supply the sympathetic and the parasympathetic fibers to the corpus cavernosum, and correspond to the cavernous nerves of the clitoris.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.