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Tags:, sperm, sperm cells, supporting cells,
(View ID:171460)
testosterone pill sperm birth land.People there are three types of cells within the testis: Sertoli cells, interstitial cells and germ cells.Sertoli cells and germ cells of the seminiferous tubule of the seminiferous epithelium, and stromal cells present in between the seminiferous tubules.Sertoli cells is a high columnar cells, spermatogenic cells embedded in it.The past, people think that the main role is to support a living cell sperm cell to provide support and nutrition, so it is called supporting cells.Actually support cell function a great deal.They are connected together to form a barrier, so that the seminiferous tubules as a closed micro-environment.Rat Sertoli cells secrete androgen binding protein, this protein has a high degree of binding with testosterone, which can synthesize and secrete interstitial cells of the testosterone to be concentrated, so that the tube of plasma testosterone concentration 100 times higher than it is sperm production necessary.People have the same testicular androgen binding protein is not clear. From the bottom to the top of the supporting cells, sperm cells is becoming more mature.Is located in the bottom of the spermatogonia, followed up the primary, secondary spermatocytes and spermatids.A spermatogonia after repeated mitotic division and two mature (meiosis), the formation of 256 sperm cells with only half of the chromosomes, which contain 50% of the X chromosome, Y chromosome with the other 50%.Spermatogonia and spermatocytes shape is round, no tail, to the tail of the sperm cells gradually appeared.After a series of changes in sperm cells, and finally mature and form, such as tadpole-like sperm, emissions into the seminiferous tubules.Sperm within the seminiferous tubules in the mature time is about 64-72 days.In addition, even in the epididymis can stay 19-25 days to mature, then it has active sperm and fertility.Therefore, the sperm maturation process takes about 90 days time.This is what the use of medication with azoospermia and oligozoospermia, at least for 3 months.It must not be impatient, just a few days medicine service, a look at no change in sperm count and motility, immediately crestfallen, for another drug, in the end, all kinds of medicine tasted, but no avail. , sperm, sperm cells, supporting cells, chromosomes, testes, testosterone, hormone, tail, hormone binding, germ cell
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