Question

Why are testes located in scrotal sacs outside the abdomen. Explain.

Answer 1

Testes

1. The two testes are oval organs that are contained in a thin-walled sac of skin called the scrotum.
2. Testes produce male gametes i.e., sperms.

Testes are located in scrotal sacs outside the abdomen due to the following reason:

1. The high temperature of the body does not permit the maturation of sperm. But in normal conditions, being in a separate sac suspended from the body, the testes escape too much body heat.
2. Scrotum has a relatively lower temperature (1 °C to 3 °C) than the body to produce sperms.
3. When it is too hot, the skin of the scrotum loosens so that the testes hang down away from the body. When it is cold, the skin contracts in a folded manner and draws the testes closer to the body for warmth.