ANATOMY

Detailed explanation-1: -Testosterone is a hormone that is responsible for many of the physical characteristics specific to adult males.

Detailed explanation-2: -Luteinizing hormone (LH) stimulates testosterone production. If too much testosterone is produced, the hypothalamus alerts the pituitary gland to make less LH, which tells the testes to decrease testosterone levels.

Detailed explanation-3: -Male sex hormones, as a group, are called androgens. The principal androgen is testosterone, which is secreted by the testes.

Detailed explanation-4: -Testosterone is the main sex hormone found in men. It controls male physical features. The testes (testicles) make testosterone.

Detailed explanation-5: -Signals sent from the brain to the pituitary gland at the base of the brain control the production of testosterone in men. The pituitary gland then relays signals to the testes to produce testosterone.