Is tunica vaginalis present in females?
This closure (also called fusion) occurs at any point from a few weeks before birth, to a few weeks after birth. The remaining portion around the testes becomes the tunica vaginalis. If it does not close in females, it forms the canal of Nuck.
Whats a tunica vaginalis?
Medical Definition of tunica vaginalis : a pouch of serous membrane covering the testis and derived from the peritoneum.
What is tunica vaginalis and processus vaginalis?
The tunica vaginalis is a mesothelium-lined sac that results from closure of the superior portion of the processus vaginalis. This fascial structure normally covers the entire testis except the posterior border.
What does the tunica albuginea testis do?
The tunica albuginea (TA) forms the fibrous covering of the testis and is itself covered by the serous layer, the tunica vaginalis. The covering is total, except for at the point of attachment of the epididymis, and a small defect posteriorly where the spermatic cord vessels enter and leave the testis.
Is tunica vaginalis continuous with peritoneum?
Tunics. The tunica vaginalis, derived from the abdominal peritoneum, continues through the inguinal canal to line the interior of the scrotum and envelops the testis and its associated ducts and spermatic cord1,11 (Figure 59-2).
Do males have a vaginal process?
The processus vaginalis is the peritoneal tunnel through which the testes migrate from the retroperitoneum toward the scrotum during embryological development. Here, there will be herniation of abdominal contents through the internal inguinal ring.
Is tunica albuginea same as tunica vaginalis?
The testes are paired ovoid structures that are housed in the scrotum and positioned so that the long axis is vertical. The testicle is covered by the tunica vaginalis. Beneath the tunica vaginalis is the capsule of the testis, termed the tunica albuginea.
What is the pampiniform plexus?
The pampiniform plexus is a loose network of small veins found within the male spermatic cord. The plexus begins in the scrotum with veins arising from the mediastinum testis, an area of connective tissue at the back of the testis.
Is the gubernaculum the same as the processus vaginalis?
Subsequently in the male, an outpouching of the future peritoneum of the coelomic cavity protrudes into the labioscrotal swellings, into the space created by the gubernaculum. This outpouching is known as the processus vaginalis, and it precedes the future testis into the scrotum (Fig.
What is the covering of testis?
tunica albuginea
The testicle is covered by the tunica vaginalis. Beneath the tunica vaginalis is the capsule of the testis, termed the tunica albuginea.
What is Dartos muscle?
The dartos muscle (tunica dartos) is a thin sheet of smooth muscle closely associated with the skin of the scrotum.
What is tunica albuginea female?
Formation of the Ovarian Tunica Albuginea The tunica albuginea is a nonvascularized [93], thick fibrous-rich layer, composed mainly of structural collagens and other extracellular proteins (collagen type I, decorin, versican), located below the ovarian surface [18,94,95].
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