Q. The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for :
(a) Maintaining the scrotal temperature lower than the internal body temperature .
(b) Escaping any possible compression by the visceral organs .
(c) Providing more space for the growth of epididymis .
(d) Providing a secondary sexual feature for exhibiting the male sex .
Solution :
Correct option : A (i) The sperms develop at a lower temperature than the internal body temperature which is 37 degree Celsius. (ii)To maintain a lower temperature during spermatogenesis the testis descends in the scrotal sac outside of the abdominal cavity. So, the correct option is ‘Maintaining the scrotal temperature lower than the internal body temperature’.