Answer:
Dartos muscle and cremaster muscle regulate the scrotal temperature.
Step-by-step explanation:
Scrotum is a part of the male reproductive system, which consists of a dual-chambered suspended sac of skin and smooth muscles.
The temperature of the testes, present in the scrotum, is maintained at 35°C, which is 2°C less than the normal body temperature (37°C). This is because the process of spermatogenesis requires a lower temperature.
This temperature is maintained with the help of the two smooth muscles of the scrotum, the cremaster muscle and the dartos fascia.