The male reproductive system is the result of a set of internal and external organs, which release hormones, androgens, and are regulated by the brain through the hypothalamus, which secretes the gonadotropin release hormone and pituitary gland, which releases the stimulating and luteinizing follicle.Hormone..
The main sexual characteristics, including male genitalia, are formed during fetal development and secondary events are formed from puberty, between the ages of 9 and 14, when the child’s body becomes a male body, in which male genitalia develop, as well as the appearance of the beard, hair throughout the body and a deepening of the voice.
- The scrotum is a loose skin sac.
- Which has the function of holding the testicles.
- Are separated by a septum.
- Which is formed by muscle tissue and when contracted.
- Causes wrinkles in the skin of the scrotum.
- Which is very important to regulate the temperature.
- Because it is in the testicles where sperm are produced.
The scrotum can keep the temperature of the testicles below body temperature because it is outside the pelvic cavity.In addition, under certain conditions, such as exposure to cold, the cremaster muscle, which is inserted into the scrotum and suspends the testicle, lifts the testicles when exposed to cold, preventing it from cooling, which in turn lifts the testicles when exposed to cold.it also occurs during sexual arousal.
Men typically have two testicles, which are oval-shaped organs and are approximately 5 cm long and 2.5 cm in diameter each, and weigh between 10 and 15 grams. These organs are used to secrete sex hormones involved in sperm, which consists of sperm formation., and which stimulate the development of male sexual traits.
The functioning of the testicles is influenced by the central nervous system, through the hypothalamus, which secretes the gonadotropin-releasing hormone (GnRH), and the pituitary gland, which releases follicle stimulating hormones (FSH) and luteinizing (LH).
Inside the testicles are the seminiferous tubules, where the germ cells are differentiated into sperm, which are then released into the light of the tubules and continue to mature along their path through the channels of the reproductive system.In addition, the seminiferous tubules also contain Sertoli cells, which are responsible for the nutrition and maturation of germ cells, and the interstitial tissue surrounding these tubules contains Leydig cells, which produce testosterone.
These glands are responsible for the secretion of much of the sperm, which is very important for the transport and nutrition of sperm and for penis lubrication:
The penis is a cylindrical structure, composed of cavernous and fluffy bodies, located around the urethra; At the distal end of the penis is the acorn, covered by the foreskin, which has the function of protecting this region.
In addition to facilitating the release of urine, the penis also has an important role in sexual intercourse, the stimuli of which cause the dilation of its arteries that supply the corpora cavernosa and spongy and cause an increase in the amount of blood in this region, also causing an increase and hardening of the penis, facilitating its penetration into the vaginal canal during intercourse.
Male reproduction is controlled by hormones that stimulate the development of reproductive organs, sperm production, the development of secondary sexual traits and also sexual behavior.
The functioning of the testicles is controlled by the hypothalamus, which releases gonadotropin-releasing hormone (GnRH), stimulating the pituitary gland to secrete luteinizing hormone (LH) and follicle stimulating hormone (FSH).These hormones act directly on the testicle,controlling spermatogenesis and the production of androgen hormones, estrogens and progesterone.
Among these, the most abundant hormones in men are androgens, with testosterone being the most important and related to the development and maintenance of male sexual traits, also influencing sperm formation.
Androgens also influence the development of primary and secondary sexual traits.Primary sexual traits, such as external and internal male sex organs, form during embryo development and secondary sexual traits develop from puberty.
Puberty occurs around 9 to 14 years, resulting in changes in body shape, growth of the beard and pubic hair and the rest of the body, thickening of the vocal cords and the onset of sexual desire.growth of the penis, scrotum, seminal vesicles and prostate, increased sebaceous secretions, responsible for acne.
See also how the female reproductive system works.