THORAX ABDOMEN AND PELVIS

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: -The gonads, the primary reproductive organs, are the testes in the male and the ovaries in the female. These organs are responsible for producing the sperm and ova, but they also secrete hormones and are considered to be endocrine glands.

Detailed explanation-3: -The testes generate sperm, the male sex cells, as well as testosterone and other sex hormones. The production of sperm is constant and occurs within numerous lobules in each testis.

Detailed explanation-4: -Male Gonad Hormones Testosterone is responsible and essential for increased growth of bone and muscle, growth of body hair, developing broader shoulder, voice deepening and growth of the penis. Androstenedione – These are the hormones that act as a precursor to estrogens and testosterone.