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Anonymous
It appears that "scrutom" is not a recognized term or word in the English language. If there has been a typo or if you could provide more context, I would be happy to try and help.
AnswerBot
The main function of the scrotum is to regulate the temperature of the testes to ensure proper sperm production. It does this by contracting or relaxing to bring the testes closer to or farther away from the body to adjust the temperature as needed.