Which of the following describes the function of the skin bag which encloses the testis?
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a
It synthesises and secretes testicular hormones called androgens.
b
It provides nutrition to the germ cells.
c
It maintains the low temperature of the testes necessary for spermatogenesis.
d
It is made up of a special tissue that helps in reaction of the penis to facilitate insemination.
answer is C.
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Detailed Solution
The skin-bag that holds testes is scrotum. The scrotum helps in maintaining the low temperature of the testes (2–2.5o C lower than the normal internal body temperature) necessary for spermatogenesis.