What is the tunica albuginea in anatomy?
Anatomical terminology The tunica albuginea is the fibrous envelope that extends the length of the corpora cavernosa penis (containing erectile tissue) and corpus spongiosum penis (containing the male urethra). It is a bi-layered structure that includes an outer longitudinal layer and an inner circular layer.
What is the function of the tunica albuginea?
The tunica albuginea (TA) envelops the penile erectile bodies and is composed of organized fibrillar collagen interlaced with elastin fibers, which allow tunica expansion. It protects erectile tissue, promotes penile rigidity and length, and participates in the veno-occlusive mechanism.
Where is tunica albuginea?
penis
Tunica albuginea is the tough fibrous layer of connective tissue that surrounds the corpora cavernosa of the penis.
Do females have a tunica albuginea?
The tunica albuginea is a layer of condensed fibrous tissue on the surface of the ovary.
Where is the tunica?
The tunica intima, the innermost layer, consists of an inner surface of smooth endothelium covered by a surface of elastic tissues. The tunica media, or middle coat, is thicker in arteries, particularly in the large arteries, and consists of smooth muscle cells intermingled with elastic fibres.…
What is tunica vaginalis?
The tunica vaginalis is the pouch of serous membrane that covers the testes. It is derived from the vaginal process of the peritoneum, which in the fetus precedes the descent of the testes from the abdomen into the scrotum.
What is tunica albuginea in ovary?
The tunica albuginea is the thick connective tissue capsule of the ovary.
What is the tunica albuginea quizlet?
tunica albuginea. fiberous membrane inner layer of the testes. scrotum. sac of skin and superficial facia hanging outside abdominal pelvic cavity.
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.
Is tunica vaginalis peritoneum?
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).
What is tunica intima anatomy?
The innermost layer of the vein is the tunica intima. This layer consists of flat epithelial cells. These cells allow fluid to flow smoothly and are interspersed with valves that ensure the flow continues in one direction. This continuous layer of epithelial cells holds cells and fluid within the vessel lumen.
Where is the tunica media?
The tunica media (New Latin “middle coat”), or media for short, is the middle tunica (layer) of an artery or vein. It lies between the tunica intima on the inside and the tunica externa on the outside.