Why are the testicles located outside the body?

Why are the testicles located outside the body?
Why are the testicles located outside the body?

The testicles are the central organs of the male reproductive system, so they occupy a special place in the male body. But why are they located outside the body and not inside?

The testicles, also called male gonads, are primary male reproductive organs responsible for the production of sperm and the secretion of testosterone, the male sex hormone. These oval organs, measuring approximately 4 to 5 centimeters long and 2 to 3 centimeters wide, are housed in a skin sac called the scrotum, suspended under the penis. The testes are composed of several internal structures, including the seminiferous tubules and Leydig cells, which play an important role in spermatogenesis (the process of sperm formation) and hormonal regulation.

What is the role of the testicles in humans? Definition and functions

The testicles play a key role in the reproductive process. They are the site of spermatogenesis, the process of producing sperm, which are necessary for the fertilization of the egg for conception. Additionally, the testes secrete testosterone, the male sex hormone responsible for the development of secondary sexual characteristics, regulation of libido and erectile function. Thus, the testicles contribute to male fertility and the maintenance of good general health in men. In the event of sudden pain in the testicles, inflammation of the epididymis, orchitis, hydrocele or testicular torsion, a medical consultation is necessary.

Male anatomy: what is the normal position of the testicles?

Normally, the testicles are located outside the body, in the scrotum, a skin sac located under the penis. Some researchers say that the testicles need to be kept at a slightly lower temperature than the rest of the body to facilitate sperm production. Others, on the other hand, think that the freshness obtained by this external position helps keep the spermatozoa dormant before they become activated when they are subjected to a higher temperature inside the vagina. In some cases, one (or both) testicles do not descend into the scrotum during fetal development, which may require surgery. This is called cryptorchidism.

Shape, temperature… What is the scrotum and what is it for?

The scrotum is an anatomical structure composed of skin tissue and muscles that houses the testicles in men. It is located between the thighs, just below the penis. The role of the scrotum is to protect the testes while allowing them to regulate themselves thermally by contracting or relaxing to maintain an optimal temperature for spermatogenesis. In addition, the scrotum provides some mobility to the testes, allowing them to adjust according to variations in temperature and volume in order to provide the testes with an optimal environment for the production and preservation of sperm. The scrotum therefore plays a key role in the male reproductive system.

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