The nurse is explaining the function of the male's cremaster muscle to a group of nursing students. Which statement accurately describes the function of the cremaster muscle?
a. Assists with transporting sperm
b. Aids in temperature control of the testicles
c. Aids in voluntary control of excretion of urine
d. Entraps blood in the penis to produce an erection
ANS: B
A cremaster muscle is attached to each testicle. Its function is to bring the testicle closer to the body to warm it or allow it to fall away from the body to cool it, thus promoting normal sperm production. Seminal fluid assists with transporting sperm. The urinary meatus aids in controlling the excretion of urine. Entrapment of the blood in the penis is caused by its spongy tissue.
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