Sperm production

This is a video on the production of sperms. The process is known as Spermatogenesis. Spermatogenesis is the process by which male gametogonia develop into mature spermatozoa, the mature male gametes, in many sexually reproducing organisms. In mammals it occurs in the male testes and epididymis in a stepwise fashion, and for humans takes approximately 64 days. Spermatogenesis starts at puberty and usually continues uninterrupted until death, although a slight decrease can be discerned in the quantity of produced sperm with increase in age. The entire process can be broken up into several distinct stages, each corresponding to a particular type of cell. These stages include mitosis (which divides germ cells into spermatocytes), meiosis (which divides spermatocytes into spermatids), spermiogenesis (which matures the spermatids) before being released from the protective Sertoli cells into the lumen of the seminiferous tubule where they are stored.

However, science has brought man far and now there are aritificial sperms being created. In 2006, scientists have fertilised mouse eggs with sperm grown from embryonic stem (ES) cells to produce seven pups, proving that working sperms can be made in the laboratory. This means that in the future, infertile men can also have children as their sperms can be artificially created