11/04/2011

Testicular sperm-producing process

Men of fine fine testicles song of epithelial cells has two kinds: one kind is fine cell, can develop into sperm; A class that support cells, support and nutrition the role of sperm cells.

Sperm are men mature reproductive cells, their development is by not mature spermatagonial cells began. Spermatagonial cells DuoCi division and the increase in size, become pure mother cells, which then split, become sperm cells, finally develop into mature sperm, namely: meet the original cells-pure mother cells-the sperm cell-sperm.

Sperm and mature, fall off to the song of the lumen of fine, slowly from the epididymis, and part of the stored in here, most of the transitions to again and internal storage vasectomy pot, until ejaculation is expelled when.

Sperm in the forming process, need to have appropriate and relatively constant environment, and the temperature is one of the important sperm production conditions. The appropriate and relatively constant temperature is depend on the easy shrinks to adjust the scrotum. When the outside temperature increase as scrotum is diastolic, expand the area to heat temperature; Conversely, when the outside temperature decreases to close the scrotum to heat preservation. By this regulation, scrotal internal keeps the temperature of 1.5 ~ 2.0 ℃ lower than the abdominal cavity.

Human sperm happen is a continuous process, every second sperm production, that is the body at any time there are mature sperm exist, this point and women only one egg per month mature obviously different.

Adults testicular tissue per gram a day produced about 10 million sperm, two side testicular weighing about 30 to 40 grams, so every produce sperm can amount to several hundred million.

 

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