Why are the testes located outside the abdominal cavity? Mention the endocrine and exocrine function of the testes.

(N/A) The testes are located outside the abdominal cavity within the scrotum because the process of spermatogenesis (sperm formation) requires a temperature that is $1-3\,^{\circ}C$ lower than the normal internal body temperature.
Endocrine function: The testes act as an endocrine gland by secreting the male sex hormone,$testosterone$,directly into the bloodstream.
Exocrine function: The testes act as an exocrine gland by producing and releasing male gametes,known as $sperms$,through the duct system.