Video: penis and male reproductive system

Under the protection of the video text, the science of the vertebrae of the genitals is much larger than the anatomy of the penis organ a penis hanging outside the male body, and it is usually in a condition of relaxation when the excitement occurs, the penis is filled with blood and becomes upright. Testosterone, these two testes are surrounded by a thin membrane called the scrotum, and this bag plays a role in controlling the temperature of the testicle center, where it keeps them at a temperature of a little less than the body temperature to ensure a nice climate for sperm to the production of the semen, and then the sperm is called the tube, The ejaculation process is transferred to the penis. You think the male penis is complicated, see all the parts that make up the vagina in other video recordings! Show more for all categories