Question

Outer Covering of the testes is:

• A. Tunica albuginea
• B. Tunica vaginalis
• C. Tunica media
• D. Tunica vasculosa

Answer 1

The Correct Option is B

The correct option is (B): Tunica vaginalis.

Answer 2

This question is about the layers that wrap around each testis, moving from the outermost layer inward. Let's go through each option:

1. Tunica albuginea: This is a tough, fibrous capsule that lies directly on the testis itself and sends inward septa that divide the testis into lobules. It sits underneath the outer covering, not as the outermost layer.
2. Tunica vaginalis: This is a double-layered sac derived from the peritoneum during the descent of the testis into the scrotum. It wraps around the outside of the tunica albuginea and forms the outermost covering of the testis, allowing it to move smoothly within the scrotal sac.
3. Tunica media: This term refers to the middle muscular layer found in the walls of blood vessels, such as arteries, and is not a layer of the testis at all.
4. Tunica vasculosa: This is a thin, vascular layer that lies on the inner surface of the tunica albuginea, carrying blood vessels to the testicular tissue. It is an inner layer, not the outer covering.

Working from the outside of the testis inward, the order is tunica vaginalis, then tunica albuginea, then tunica vasculosa. Tunica media does not belong to the testis at all.

So the correct answer is Tunica vaginalis.