testosterone hormones in the blood flow - section view 3d

testosterone male sex hormone anabolic steroid increased muscle bone mass growth body hair aggression violence androstane ketone hydroxyl cholesterol activation androgen testicles metabolism gender dysphoria athletes sport doping exercise training anabolic effects androgenic density maturation sex organs penis scrotum fetus puberty facial postnatal spermatogenic jaw brow chin adam's apple prostate cancer glycemic control sexual activity masturbation hormone cycles erection ejaculation