Glands that control sperm production
These organs do the following jobs within your body:. The male reproductive system is made up of internal inside your body and external outside your body parts. Together, these organs help you urinate rid your body of liquid waste materials , have sexual intercourse and make children. Most of the male reproductive system is located outside of your abdominal cavity or pelvis. The external parts of the male reproductive system include the penis, the scrotum and the testicles. The opening of the urethra — the tube that transports both semen and urine out of the body — is located at the tip of the glans penis.
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Male Reproductive System
Endocrinology of the Male Reproductive System and Spermatogenesis - Endotext - NCBI Bookshelf
Sperm production is hormonally driven. Brain hormones govern sperm production and are precisely controlled. The hypothalamus secretes gonadotropin-releasing hormone GnRH , which acts on the anterior pituitary gland, stimulating it to release follicle stimulating hormone FSH and leutinizing hormone LH. FSH and LH are released into the bloodstream and act only on the testes to encourage spermatogenesis within seminiferous tubules action of FSH and testosterone production by neighboring Leydig cells action of LH between the seminiferous tubules Figure 1. The male genitalia consist of the scrotum, which houses the testicles and associated ducts the epididymis and vas deferens , and the penis Figure 2. The testes are covered by a tough, white, fibrous layer called the tunica albuginea, which extends inward and divides the testis into to lobules. Sperm production occurs in the long and tightly coiled seminiferous tubules that are located in each of these lobules.
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You and Your Hormones
NCBI Bookshelf. Endotext [Internet]. The testes synthesize two important products: testosterone, needed for the development and maintenance of many physiological functions; and sperm, needed for male fertility. The synthesis of both products is regulated by endocrine hormones produced in the hypothalamus and pituitary, as well as locally within the testis.
The organs and structures of the male reproductive system give men the ability to fertilise a woman's egg ovum to produce a baby. The scrotum, or scrotal sac. This is the loose bag of skin which hangs under the main body cavity between the upper thighs. It is divided into two, and each side contains one testicle testis.
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