The cremaster muscles are important to the integrity of the male reproductive system. Which of the following is true about their function?
A) They contract to allow ejaculation.
B) They contract to move the sperm along in the duct.
C) They are responsible for penile erection.
D) They regulate the temperature of the testes.
D
Explanation:
A) The cremaster muscles are not involved with ejaculation.
B) The cremaster muscles are not involved in moving sperm along the duct.
C) The cremaster muscles are not responsible for penile erection.
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