prostatic (nervous) plexus

pros·tat·ic (nervous) plex·us

an autonomic plexus of nerves intimately associated with the capsule of the prostate, derived from the inferior hypogastric plexus, and giving rise to the cavernous nerves to the erectile tissue of the penis; surgical injury of this plexus often results in impotence.
Farlex Partner Medical Dictionary © Farlex 2012