Ejaculation is achieved by an involuntary contraction of muscles and vessels that propel semen from the human body. Exactly the same tube which is utilized for ejaculation, called the urethra, can also be used for urination (peeing). Ischiocavernosus (x2) – surrounds the remaining and appropriate crura of the penis. It https://louis9012i.blogthisbiz.com/42461220/penis-an-overview