Ejaculation is accomplished by an involuntary contraction of muscles and vessels that propel semen from the human body. The exact same tube that is certainly utilized for ejaculation, known as the urethra, is likewise utilized for urination (peeing). Summary The penis is a posh organ utilized for urination, sexual activity, https://judo-sport84051.theblogfairy.com/34584561/everything-about-filler