In the human being and in other mammals the spermatogenesis It is male gametogenesis, that is, the process of maturation of male germ cells[1] which takes place in the semine tubules of the testicles. It begins when the individual has reached puberty[2], thanks to the stimulus of the FSH and testosterone hormones[3][4].
Spermatogenesis process
It is the analogue of the ovogenesis for the woman, but differs from this mainly for the timing since the production of spermatozoa begins in puberty and lasts throughout the life of the individual while the Ovogenesis begins before the birth only to then interrupt and resume the individual's sexual maturation to end at menopause[2]. Spermatogenesis is not to be confused with the spermiogenesis which is the third and last phase of the spermatogenesis itself in which the final differentiation takes place that leads to the development of mature spermatozoa[5]. At the end of the spermatogenesis only 80% of spermatozoa is normal, the remaining 20% consist of functionally or morphologically anomalous spermatozoa[6].
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