Sperm in the testes of fine fine after generation pipe music, from form perspective, has formed the tadpole-looking feature sperm, but proved by the experiment, testicular sperm did not have fertilization in ability. Testicular sperm to within sperm mature experience in epididymis process, as well as in a woman's reproductive tract by experience can process.
Sperm in four to six meters long epididymis during operation in a series of complex changes.
Sperm in a mature process, bulk slightly smaller, reduce water content. The most obvious change is not mature sperm body of the cytoplasm droplets move backward, and eventually take off. In some infertility patients in the semen of, can see a lot not take off the cytoplasm little drops of immature sperm.
Testicular sperm can come out inside activities, but in the head of epididymis section, namely lose activity ability. Sperm in the process of operation within the epididymis, and gradually gain the ability to move. First place swings, and then a circle round type movement, and finally the mature sperm swing type to the peculiar before sports. Therefore, observe the sperm movement way, and the measure of whether mature sperm a index.
In addition, in the process of mature sperm, sperm membrane permeability change, such as potassium ion permeability increase, the emergence of a platoon sodium function, the enzyme activity and metabolic has important implications. Sperm in the movement process of epididymis surface negative charge increase, this can make the sperm in epididymis when storing in, because the charge of reactive gay role, and not together to form a dough.
No comments:
Post a Comment