Tunica vaginalis
(Redirected from Tunica vaginalis testis)
Tunica vaginalis is a serous membrane that covers the testis and the internal surface of the scrotum. It is derived from the peritoneum and consists of two layers: the visceral layer and the parietal layer.
Anatomy[edit | edit source]
The tunica vaginalis is composed of two layers:
- The visceral layer covers the testis, the epididymis, and the lower part of the spermatic cord.
- The parietal layer lines the internal surface of the scrotum.
Between these two layers is a small amount of serous fluid that allows the testis to move freely within the scrotum.
Development[edit | edit source]
The tunica vaginalis is formed during the descent of the testis from the abdominal cavity into the scrotum. It is an outpouching of the peritoneum that accompanies the testis as it descends through the inguinal canal.
Clinical Significance[edit | edit source]
The tunica vaginalis can be involved in several medical conditions:
- Hydrocele testis: This is a condition where there is an accumulation of fluid between the visceral and parietal layers of the tunica vaginalis.
- Hematocele: This occurs when blood accumulates in the space between the layers of the tunica vaginalis, often due to trauma.
- Testicular torsion: This is a medical emergency where the testis twists around the spermatic cord, potentially involving the tunica vaginalis.
Related Structures[edit | edit source]
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
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Contributors: Prab R. Tumpati, MD