Men's testicles, as well as women's ovaries produce sex hormones - androgens and the most important of these hormone testosterone.The testicles also produce seminal fluid.In the developing fetus, testosterone promotes the development of male sex organs.During puberty, this hormone promotes the production of sperm and the development of secondary sexual characteristics such as body hair and on her face, a change in the vocal cords and muscle growth.testicular size ranges from 2.5 - 4.5 cm in length and about half of this width.For most men the left testicle hangs lower than the right.
testes constantly produce sperm.In fact, they produce it at an incredible rate - about 1,000 sperm per second.However, men
sperm mature within 70 - 75 days.Young adult man only when one ejaculation lose about 300 - 500 million sperm.
Inside testicular spermatozoa are produced in the spiral tube called semyavyvodya-forming tubules.Depleted in these young sperm cells come in a large-sized spiral tube (epidedimis), where co
Iron Cooper is located below the prostate.During sexual arousal, it produces a few drops of clear secretions that accumulates at the entrance to the urethral orifice and a lubricant, which neutralizes the acidic environment inside the urethra and makes it easier to pass on her sperm during ejaculation.This secret is often contain viable sperm, and therefore a woman can get pregnant even if the man during ejaculation takes his penis out of a woman's vagina.