The testes require a slightly lower temperature than normal body temperature to function properly.

Question

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The testes require a temperature that is about 2 to 4 degrees Celsius lower than normal body temperature (which is approximately 37 degrees Celsius or 98.6 degrees Fahrenheit) to function properly. This is why the testes are located outside of the body in the scrotum, which allows them to maintain a cooler temperature than the rest of the body. If the testes are exposed to temperatures that are too high for an extended period of time, it can affect sperm production and fertility.

The Testes Require a Slightly Lower Temperature Than Normal Body