Testes - production of sperm and testosterone
As the gonads, the male reproductive organs, the main task of the paired testicles is to produce sperm (spermatogenesis) carrying the male genes for fertilization. The testis consists of approx. 250-300 lobules with numerous tubules and intermediate endocrine cells that produce the male hormones (androgens), primarily testosterone. The androgens play a major role in differentiation into the male sex.
Epididymus - maturation of sperm cells
The epididymis are elongated organs that receive the sperm from the testicles via the efferent ducts and allow them to mature (preservation of mobility). The sperms are transported from the epididymis to the urethra by means of the deferent duct, a tube about 40 cm long.
Accessory sex glands - nutrition, transport and activation
The accessory sex glands produce the seminal fluid of the ejaculate that nourishes the sperm and assist in their transport and activation. Accessory glands include the prostate, seminal vesicles and bulbourethral glands. The prostate gland lies below the bladder and surrounds the urethra, where it produces an alkaline secretion with citric acid (buffering effect) and numerous enzymes. It is supported by the other accessory sex glands, the seminal vesicles and the bulbourethral glands.