ANATOMY

Detailed explanation-1: -The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm.

Detailed explanation-2: -They contain very fine-coiled tubes, called seminiferous tubules and are covered with tough membrane, tunica albuginea. Primary cell types in testes are germ cells, Sertoli cells which secrete inhibin, Leydig cells which produce and secrete androgens, peritubular hyoid cells, macrophages and epithelial cells.

Detailed explanation-3: -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-4: -Testosterone is responsible for the development of secondary sex characteristics, features of male development (including characteristics that are not part of the reproductive system, such as facial hair growth and voice change). Sexual development occurs in a set sequence: Enlargement of the scrotum, and testes.

Detailed explanation-5: -The testes are responsible for making sperm and are also involved in producing a hormone called testosterone. Testosterone is an important hormone during male development and maturation for developing muscles, deepening the voice, and growing body hair. Epididymis. A long tube that is located near each testicle.