How are sperms made?

Sperms, the male sex cells, develop in the testes. They are stored for several days until needed. The testes contain long tubes called seminiferous tubules, which are tightly coiled. sperms are produced continuosly in these tubes and then passed to tyhe epididymis and are stored in a large duct called vas deferens. Here liquid is added to the sperm to make a milky fluid called semen. It is stored in pouches called semenal vesicles. during sexual intercourse, the seminal vesicles contract and force out the sperm. It passes out of the penis and into the female sezual organs.

Up to 100 million sperms are produced everyday by the male. If they are not released, they are soon destroyed and replaced. sperms look like tiny tadpoles, with rounded heads and long lashing tails. They use their tails to swim at a speed of about one cm per minute. The head of the sperm contains the nucleus, which will join with the egg cell during fertilization.