The sympathetic innervation for your penis emanates from the T11-L1 segments of the spinal wire. These nerves synapse Using the sympathetic trunk, which supplies from the postganglionic sympathetic fibers that pass through the pelvic plexus and sign up for the cavernous nerve. [6] Erection subsides when parasympathetic stimulation is discontinued; https://bookmarkingfeed.com/story19594233/rumored-buzz-on-filler