Perineal membrane
Updates to Article Attributes
The perineal membrane is a thin triangular horizontal layer of dense tough fascia in the perineum the dividing the urogenital triangle into the superficial (inferior) and deep (superior) perineal pouches.
It attaches to the inferior margins of the ischiopubic rami, enclosing the anterior portion of the pelvic outlet. Its posterior margin is thickened and connects to the transverse perineal ligament which contains the perineal body in the midline, a condensation of fibromuscular tissue with various muscular attachments.
In the female, the perineal membrane is traversed by the vagina and urethra, along with several accompanying vessels and nerves.
In the male, it is traversed by the urethra (membranous portion) and the ducts of the bulbourethral glands, along with several accompanying vessels and nerves.
In both sexes, the perineal membrane provides tough support to the genital organs that transverse it or directly attach to it. The ischiocavernosus attaches to the lateral margin and the bulbospongiosus attaches to it's medial region of the membrane's inferior surface.
-<p>The <strong>perineal membrane</strong> is a </p>- +<p>The <strong>perineal membrane</strong> is a thin triangular horizontal layer of dense tough fascia in the <a title="Perineum" href="/articles/perineum">perineum</a> the dividing the <a href="/articles/urogenital-triangle">urogenital triangle</a> into the <a href="/articles/superficial-perineal-pouch">superficial</a> (inferior) and <a href="/articles/deep-perineal-pouch">deep (superior) perineal pouches</a>.</p><p>It attaches to the inferior margins of the <a title="Inferior pubic ramus" href="/articles/inferior-pubic-ramus">ischiopubic rami</a>, enclosing the anterior portion of the pelvic outlet. Its posterior margin is thickened and connects to the <strong>transverse perineal ligament</strong> which contains the <strong>perineal body</strong> in the midline, a condensation of fibromuscular tissue with various muscular attachments.</p><p>In the female, the perineal membrane is traversed by the <a title="Vagina" href="/articles/vagina">vagina</a> and <a title="Female urethra" href="/articles/female-urethra">urethra</a>, along with several accompanying vessels and nerves. </p><p>In the male, it is traversed by the <a title="Male urethra" href="/articles/male-urethra">urethra</a> (membranous portion) and the ducts of the <a title="bulbourethral glands" href="/articles/bulbourethral-glands">bulbourethral glands</a>, along with several accompanying vessels and nerves. </p><p>In both sexes, the perineal membrane provides tough support to the genital organs that transverse it or directly attach to it. The <a href="/articles/ischiocavernosus-muscle">ischiocavernosus</a> attaches to the lateral margin and the <a href="/articles/bulbospongiosus-muscle">bulbospongiosus</a> attaches to it's medial region of the membrane's inferior surface.</p>
References changed:
- 1. Susan Standring. Gray's Anatomy. <a href="https://books.google.co.uk/books?vid=ISBN9780702052309">ISBN: 9780702052309</a><span class="ref_v4"></span>
- 2. Last's anatomy, regional and applied. Churchill Livingstone. ISBN:044304662X. <a href="http://books.google.com/books?vid=ISBN044304662X">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/044304662X">Find it at Amazon</a><span class="auto"></span>
- 3. Moore KL, Agur AMR, Dalley AF. Clinically oriented anatomy. LWW. ISBN:1451119453. <a href="http://books.google.com/books?vid=ISBN1451119453">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/1451119453">Find it at Amazon</a><span class="auto"></span>
Sections changed:
- Anatomy
Systems changed:
- Urogenital
- Gastrointestinal