Posterior labial nerves

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Posterior labial nerves
Details
From pudendal nerve
Identifiers
Latin nervi labiales posteriores
TA98 A14.2.07.040F
TA2 6558
FMA 21868
Anatomical terms of neuroanatomy

The posterior labial nerves are branches of the pudendal nerve. They supply the female labia majora.

The counterparts in males are the posterior scrotal nerves.

See also

Related Research Articles

<span class="mw-page-title-main">Pudendal nerve</span> Main nerve of the perineum

The pudendal nerve is the main nerve of the perineum. It is a mixed nerve and also conveys sympathetic autonomic fibers. It carries sensation from the external genitalia of both sexes and the skin around the anus and perineum, as well as the motor supply to various pelvic muscles, including the male or female external urethral sphincter and the external anal sphincter.

<span class="mw-page-title-main">Levator ani</span> Broad, thin muscle group, situated on either side of the pelvis

The levator ani is a broad, thin muscle group, situated on either side of the pelvis. It is formed from three muscle components: the pubococcygeus, the iliococcygeus, and the puborectalis.

<span class="mw-page-title-main">Ischiocavernosus muscle</span> Sheet of fibrous tissue between the thigh and the front of the perineum

The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women.

<span class="mw-page-title-main">Internal pudendal artery</span> Blood vessel supplying blood to the external genitalia

The internal pudendal artery is one of the three pudendal arteries. It branches off the internal iliac artery, and provides blood to the external genitalia.

<span class="mw-page-title-main">Sacrotuberous ligament</span>

The sacrotuberous ligament is situated at the lower and back part of the pelvis. It is flat, and triangular in form; narrower in the middle than at the ends.

<span class="mw-page-title-main">Inferior rectal artery</span>

The inferior rectal artery is an artery that supplies blood to the lower third of the anal canal below the pectinate line.

<span class="mw-page-title-main">Perineal nerve</span> Nerve of the perineum

The perineal nerve is a nerve of the pelvis. It arises from the pudendal nerve in the pudendal canal. It gives superficial branches to the skin, and a deep branch to muscles. It supplies the skin and muscles of the perineum. Its latency is tested with electrodes.

<span class="mw-page-title-main">Internal pudendal veins</span> Set of veins in the pelvis enclosed by pudendal canal

The internal pudendal veins are a set of veins in the pelvis. They are the venae comitantes of the internal pudendal artery. Internal pudendal veins are enclosed by pudendal canal, with internal pudendal artery and pudendal nerve.

<span class="mw-page-title-main">Ischioanal fossa</span> Wedge-shaped space located lateral to the anal canal and inferior to the pelvic diaphragm

The ischioanal fossa is the fat-filled wedge-shaped space located lateral to the anal canal and inferior to the pelvic diaphragm. It is somewhat prismatic in shape, with its base directed to the surface of the perineum and its apex at the line of meeting of the obturator and anal fasciae.

<span class="mw-page-title-main">Pudendal canal</span>

The pudendal canal is an anatomical structure formed by the obturator fascia lining the lateral wall of the ischioanal fossa. The internal pudendal artery and veins, and pudendal nerve pass through the pudendal canal, and the perineal nerve arises within it.

<span class="mw-page-title-main">Pelvic cavity</span> Body cavity bounded by the pelvic bones

The pelvic cavity is a body cavity that is bounded by the bones of the pelvis. Its oblique roof is the pelvic inlet. Its lower boundary is the pelvic floor.

<span class="mw-page-title-main">Posterior scrotal nerves</span>

The posterior scrotal branches are two in number, medial and lateral. They are branches of the perineal nerve, which is itself a branch of the pudendal nerve. The pudendal nerve arises from spinal roots S2 through S4, travels through the pudendal canal on the fascia of the obturator internus muscle, and gives off the perineal nerve in the perineum. The major branch of the perineal nerve is the posterior scrotal/posterior labial.

<span class="mw-page-title-main">Inferior anal nerves</span>

The inferior rectal nerves usually branch from the pudendal nerve but occasionally arises directly from the sacral plexus; they cross the ischiorectal fossa along with the inferior rectal artery and veins, toward the anal canal and the lower end of the rectum, and is distributed to the sphincter ani externus and to the integument (skin) around the anus.

<span class="mw-page-title-main">Dorsal nerve of the penis</span> Deepest division of the pudendal nerve

The dorsal nerve of the penis is the deepest of three divisions of the pudendal nerve; it accompanies the internal pudendal artery along the ramus of the ischium; it then runs forward along the margin of the inferior ramus of the pubis, between the superior and inferior layers of the fascia of the urogenital diaphragm.

<span class="mw-page-title-main">Superficial perineal pouch</span>

The superficial perineal pouch is a compartment of the perineum.

<span class="mw-page-title-main">Deep perineal pouch</span> Anatomic space enclosed partly by the perineum

The deep perineal pouch is the anatomic space enclosed in part by the perineum and located superior to the perineal membrane.

<span class="mw-page-title-main">Urogenital triangle</span> Anterior part of the perineum

The urogenital triangle is the anterior part of the perineum. In female mammals, it contains the vagina and associated parts of the internal genitalia.

<span class="mw-page-title-main">Anal triangle</span> Posterior part of the perineum

The anal triangle is the posterior part of the perineum. It contains the anal canal.

<span class="mw-page-title-main">Dorsal nerve of the clitoris</span>

The dorsal nerve of the clitoris is a nerve in females that branches off the pudendal nerve to innervate the clitoris. The nerve is important for female sexual pleasure, and it may play a role in clitoral erections.

<span class="mw-page-title-main">Muscular branches of perineal nerve</span> Nerve of the perineum

The deep branch of the perineal nerve is a nerve of the perineum. It is a branch of the perineal nerve, from the pudendal nerve. It supplies the superficial transverse perineal muscle, bulbospongiosus muscle, ischiocavernosus muscle, the bulb of penis, levator ani, and the external anal sphincter.