The sympathetic innervation for your penis comes from the T11-L1 segments with the spinal cord. These nerves synapse Using the sympathetic trunk, which supplies off the postganglionic sympathetic fibers that go through the pelvic plexus and join the cavernous nerve. The foundation includes the two muscles (ischiocavernosus and bulbospongiosus muscles) https://wordpresswebsiteservices73680.mybjjblog.com/the-basic-principles-of-penis-47989281