Mention the functions of the following:

(a) Scrotum — It is a pouch of skin that holds the testes outside the abdominal cavity and keeps them at a temperature about 2°C lower than the body temperature, which is necessary for the production of sperms.

(b) Epididymis — It is a highly coiled tube in which the spermatids mature into functional spermatozoa. It also serves as a temporary storage site for the sperms.