The part that performs urinogenital function in the male reproductive system is the?

Analyze the question: "Urinogenital function" means a structure that serves both the urinary system (carrying urine) and the genital/reproductive system (carrying semen). We need the one part of the male system that does both.

Explain the concept: In males, the urinary and reproductive systems share a common exit passage. Let's check each option:

• A. Seminal vesicle: A gland that secretes fluid making up much of semen. It is reproductive only and does not carry urine.
• B. Epididymis: A coiled tube on the testis where sperm mature and are stored. It is reproductive only.
• C. Urethra: A tube running from the bladder through the penis. It carries urine from the bladder, and during ejaculation it carries semen (sperm plus fluids) out of the body. It serves both urinary and genital functions.
• D. Ureter: Carries urine from the kidney to the bladder. It is urinary only.

Solution: Only the urethra serves both systems. In males it is the common passage for urine and semen, though not at the same time. A sphincter closes off the bladder during ejaculation.

Answer: C. Urethra

Exam tip: Break the word apart: urino- (urine) + genital (reproduction). Ask "which tube carries both urine and semen?" The answer is always the urethra. Remember that the ureter goes from kidney to bladder only, and don't mix up the two spellings.