The sympathetic innervation for the penis emanates from the T11-L1 segments from the spinal twine. These nerves synapse with the sympathetic trunk, which provides off the postganglionic sympathetic fibers that pass through the pelvic plexus and be a part of the cavernous nerve. This allows the sheath to stretch out https://dominickmevjx.bloggip.com/35566328/the-fact-about-penis-that-no-one-is-suggesting