Question

Which one of the following structures is not essential for maturation and motility of sperms?

• A. Epididymis
• B. Cervix
• C. Seminal vesicle
• D. Prostate

Hint:

Male structures supporting sperm maturation and motility:
$\bullet$ Epididymis
$\bullet$ Vas deferens
$\bullet$ Seminal vesicles
$\bullet$ Prostate gland
The cervix belongs to the female reproductive system.

Answer 1

The Correct Option is B

Concept:
After spermatogenesis in the seminiferous tubules, spermatozoa undergo physiological maturation and acquire progressive motility through secretions of male accessory ducts and accessory glands.

Step 1: Role of Male Reproductive Ducts and Glands:
- Epididymis: Stores spermatozoa temporarily, allowing them to undergo functional biochemical maturation and acquire forward motility.
- Seminal Vesicles: Secrete seminal plasma rich in fructose, prostaglandins, and clotting factors that nourish sperm and enhance motility.
- Prostate Gland: Secretes a slightly alkaline milky fluid containing citrate and enzymes that contribute to seminal fluid volume and maintain sperm motility.
Secretions of the epididymis, vas deferens, seminal vesicles, and prostate are essential for the maturation and motility of sperms.

Step 2: Role of Cervix:
The cervix is a structural component of the female reproductive tract that forms the cervical canal connecting the uterus to the vagina.
It acts as a passage during insemination and childbirth (part of the birth canal), but is not a male accessory structure responsible for sperm maturation and motility.

Step 3: Conclusion:
Hence, the cervix is not an essential structure for the maturation and motility of sperms.