Question

A fertility doctor is trying to determine why a couple is infertile. It has been determined that the woman is fertile, so the problem may be with the man. In analyzing his semen, the doctor notices adequate sperm production, but the sperm are largely inactive. He concludes that the semen may be lacking in proper nutrients for the sperm. Which structure would be the most likely candidate for the source of the problem?

A) urethra

B) seminiferous tubules

C) vas deferens

D) seminal vesicles

Answer

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