From inner to outer, what are the coverings of the testes?

From inner to outer, what are the coverings of the testes?

• A. parietal tunica vaginalis, visceral tunica vaginalis, tunica albuginea
• B. tunica albuginea, visceral tunica vaginalis, parietal tunica vaginalis
• C. visceral tunica vaginalis, parietal tunica vaginalis, tunica albuginea
• D. tunica vaginalis, tunica albuginea, visceral tunica vaginalis

Answer: (B)

Innermost to outermost, the coverings are the tunica albuginea, then the visceral tunica vaginalis, and finally the parietal tunica vaginalis. The tunica albuginea is the dense fibrous capsule that directly surrounds the testis. Outside that sits the visceral layer of the tunica vaginalis, which adheres to the tunica albuginea and the surface of the testis. The outermost layer is the parietal tunica vaginalis, which lines the inner wall of the scrotum. The space between the visceral and parietal layers is the potential cavity of the tunica vaginalis, containing a small amount of serous fluid in normal conditions.

Innermost to outermost, the coverings are the tunica albuginea, then the visceral tunica vaginalis, and finally the parietal tunica vaginalis. The tunica albuginea is the dense fibrous capsule that directly surrounds the testis. Outside that sits the visceral layer of the tunica vaginalis, which adheres to the tunica albuginea and the surface of the testis. The outermost layer is the parietal tunica vaginalis, which lines the inner wall of the scrotum. The space between the visceral and parietal layers is the potential cavity of the tunica vaginalis, containing a small amount of serous fluid in normal conditions.