MICROANATOMY

Detailed explanation-1: -The testes synthesize two essential products: testosterone, needed for the development and maintenance of many physiological functions including normal testis function; and sperm, needed for male fertility.

Detailed explanation-2: -Testosterone is produced by the gonads (by the Leydig cells in testes in men and by the ovaries in women), although small quantities are also produced by the adrenal glands in both sexes. It is an androgen, meaning that it stimulates the development of male characteristics.

Detailed explanation-3: -Leydig cells are the primary source of testosterone or androgens in males.

Detailed explanation-4: -The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubules are responsible for producing the sperm cells through a process called spermatogenesis.

Detailed explanation-5: -The hypothalamus produces gonadotropin-releasing hormone, which signals the pituitary gland to make follicle-stimulating hormone ( FSH ) and luteinizing hormone ( LH ). Luteinizing hormone then signals the testes to produce testosterone.