Multiple choice

In male reproductive system, the walnut-shaped organ is the

  1. Prostate gland

  2. Urethra

  3. Epididymis

  4. Testes
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A Correct answer
Explanation

The prostate is a walnut-shaped gland that surrounds the urethra. Along with the seminal vesicles it produces the fluid secretions that support and nourish the sperm. Without this fluid to dilute them, the sperm cannot move easily. After the age of 40 years,  the prostate enlarges and can press on the urethra. An enlarged prostate is often the cause of urinary problems in older men.

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