The nerves composing it are of large size.

They are distributed to the prostate seminal vesicle and the corpora cavernosa of the penis and urethra.

The nerves supplying the corpora cavernosa consist of two sets, the lesser and greater cavernous nerves, which arise from the forepart of the prostatic plexus, and, after joining with branches from the pudendal nerve, pass forward beneath the pubic arch.

It is because of this relationship that surgeons are careful to maintain the integrity of the prostatic fascial shell so as to not interrupt the post-ganglionic parasympathetic fibers that produce penile erection.

This article incorporates text in the public domain from page 988 of the 20th edition of Gray's Anatomy (1918)