THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Testes (or testicles)-these are a pair of egg-shaped glands that sit in the scrotum, on the outside of the body. They produce sperm and testosterone, which is the male sex hormone.

Detailed explanation-2: -Testosterone is secreted by cells that lie between the seminiferous tubules, known as the Leydig cells. The testes also produce inhibin B and anti-Müllerian hormone from Sertoli cells, and insulin-like peptide 3 (INSL3) and oestradiol from the Leydig cells.

Detailed explanation-3: -Sperm production takes place inside the seminiferous tubules, which is a convoluted cluster of tubes located inside the testes. Testosterone production occurs in cells surrounding the seminiferous tubules, called Leydig cells.