Perineal artery
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The perineal artery is an artery that arises from the internal pudendal artery and supplies some of the perineal musculature and external genitalia.
Summary
- Origin - the internal pudendal artery, arising at the level of the posterior angle of the perineal membrane
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Branches - it has two branches:
- a transverse perineal branch
- a terminal posterior scrotal (male) or labial (female) artery1
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Course - pierces the perineal membrane at its origin, travelling in the superficial perineal pouch to reach the scrotum or labia.
- Notably,
it liesthe perineal artery courses between the bulbospongiosus and ischiocavernosus muscles. - The transverse perineal branch arises at the level of the transverse perinei superficialis muscle and travels medially.
- Notably,
- Anastomosis - the transverse perineal branch anastomoses with the inferior rectal arteries, posterior scrotal artery and the contralateral transverse perineal artery2
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Supply
- Perineal artery - bulbospongiosus and ischiocavernosus muscles
- Transverse perineal branch - transverse perinei superficialis muscles, perineal body and the posterior bulb of the penis
- Posterior scrotal artery - posterior scrotal skin and posterior dartos muscle
- Posterior labial artery - skin of labia majora and labia minora2,3
-<strong>Origin</strong> - the internal pudendal artery, arising at the level of the posterior angle of the perineal membrane </li>- +<strong>Origin</strong> - the internal pudendal artery, arising at the level of the posterior angle of the perineal membrane</li>
-<strong>Course -</strong> pierces the <a title="Perineal membrane" href="/articles/perineal-membrane">perineal membrane</a> at its origin, travelling in the <a title="Superficial perineal pouch" href="/articles/superficial-perineal-pouch">superficial perineal pouch</a> to reach the scrotum or labia.<ul>-<li>Notably, it lies between the <a href="/articles/bulbospongiosus-muscle">bulbospongiosus </a>and <a href="/articles/ischiocavernosus-muscle">ischiocavernosus </a>muscles.</li>- +<strong>Course -</strong> pierces the <a href="/articles/perineal-membrane">perineal membrane</a> at its origin, travelling in the <a href="/articles/superficial-perineal-pouch">superficial perineal pouch</a> to reach the scrotum or labia.<ul>
- +<li>Notably, the perineal artery courses between the <a href="/articles/bulbospongiosus-muscle">bulbospongiosus </a>and <a href="/articles/ischiocavernosus-muscle">ischiocavernosus </a>muscles.</li>
-<strong>Anastomosis</strong> - the transverse perineal branch anastomoses with the <a title="Inferior Rectal Artery" href="/articles/inferior-rectal-artery">inferior rectal arteries</a>, posterior scrotal artery and the contralateral transverse perineal artery<sup>2</sup>- +<strong>Anastomosis</strong> - the transverse perineal branch anastomoses with the <a href="/articles/inferior-rectal-artery">inferior rectal arteries</a>, posterior scrotal artery and the contralateral transverse perineal artery<sup>2</sup>
-<strong>Perineal artery -</strong> bulbospongiosus and ischiocavernosus muscles </li>- +<strong>Perineal artery -</strong> bulbospongiosus and ischiocavernosus muscles</li>
-<strong>Transverse perineal branch </strong>- transverse perinei superficialis muscles, <a title="Perineal body" href="/articles/perineal-body">perineal body</a> and the posterior bulb of the penis</li>- +<strong>Transverse perineal branch </strong>- transverse perinei superficialis muscles, <a href="/articles/perineal-body">perineal body</a> and the posterior bulb of the penis</li>
-<strong>Posterior scrotal artery - </strong>posterior scrotal skin and posterior <a title="Dartos muscle" href="/articles/dartos-muscle">dartos muscle</a>- +<strong>Posterior scrotal artery - </strong>posterior scrotal skin and posterior <a href="/articles/dartos-muscle">dartos muscle</a>
References changed:
- 1. Last, R. J. (Raymond Jack). Last's Anatomy: Regional and Applied. (2011) ISBN: 9780702033957
Sections changed:
- Anatomy
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Image 1 Diagram ( create )
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Perineal artery
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