Superficial transverse perineal muscle
- Superficial transverse perineal muscle
Infobox Muscle
Name = PAGENAME
Latin = musculus transversus perinei superficialis
GraySubject = 120
GrayPage = 427
Caption = Median sagittal section of pelvis, showing arrangement of fasciæ. (Transversus perinei superficialis visible at bottom right.)
Caption2 = The superficial branches of the internal pudendal artery. (Transversus perinei labeled at center left.)
Origin = anterior part of ischial tuberosity
Insertion = central point of perineum
Blood =
Nerve = pudendal nerve
Action = Fixation of central tendon of perineum, support of pelvic floor[Saladin (2003), "Muscles of the Pelvic Floor", p 354] ]
MeshName =
MeshNumber =
DorlandsPre = m_22
DorlandsSuf = 12551265
The Transversus perinei superficialis (Transversus perinei; Superficial transverse perineal muscle) is a narrow muscular slip, which passes more or less transversely across the perineal space in front of the anus.
Origin and insertion
It arises by tendinous fibers from the inner and forepart of the tuberosity of the ischium, and, running medialward, is inserted into the central tendinous point of the perineum, joining in this situation with the muscle of the opposite side, with the Sphincter ani externus behind, and with the Bulbocavernosus in front.
In some cases, the fibers of the deeper layer of the Sphincter ani externus decussate in front of the anus and are continued into this muscle. Occasionally it gives off fibers, which join with the Bulbocavernosus of the same side.
Variations are numerous. It may be absent or double, or insert into Bulbocavernosus or External sphincter.
=Additional
Notes
References
* cite book
title = Anatomy & Physiology: The Unity of Form and Function
first = Kenneth S. | last = Saladin
year = 2003 | edition = 3rd
publisher = McGraw−Hill
External links
*
*
* - "The Female Perineum: Muscles of the Superficial Perineal Pouch"
*
*
*
Wikimedia Foundation.
2010.
Look at other dictionaries:
superficial transverse perineal muscle — n TRANSVERSUS PERINEI SUPERFICIALIS … Medical dictionary
Deep transverse perineal muscle — Muscles of the female perineum. (Transversus perinei visible at center right.) … Wikipedia
transverse perineal muscle superficial — musculus transversus perinei superficialis … Medical dictionary
Superficial perineal pouch — Infobox Anatomy Name = PAGENAME Latin = compartimentum superficiale perinei GraySubject = GrayPage = Caption = Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front. (Superficial perineal pouch is white outline at … Wikipedia
Perineal body — Infobox Anatomy Name = PAGENAME Latin = corpus perineale, centrum tendineum perinei GraySubject = 249 GrayPage = 1185 Caption = Muscles of the female perineum. Caption2 = Muscles of male perineum. System = MeshName = MeshNumber = DorlandsPre = c… … Wikipedia
Muscle — is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart… … Medical dictionary
Deep branch of the perineal nerve — Nerve: Deep branch of the perineal nerve Pudendal nerve, its course through the lesser sciatic foramen, and branches, including deep perineal nerve at bottom … Wikipedia
Perineal artery — Infobox Artery Name = PAGENAME Latin = arteria perinei GraySubject = 155 GrayPage = 619 Caption = The superficial branches of the internal pudendal artery. (Perineal artery visible but not labeled.) Caption2 = BranchFrom = internal pudendal… … Wikipedia
Deep perineal pouch — Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front. (Deep perineal pouch not labeled, but is between the superior layer and inferior layer labeled at bottom left.) … Wikipedia
Urogenital diaphragm — Older texts have asserted the existence of an urogenital diaphragm , which was described as a layer of the pelvis that separates the deep perineal sac from the upper pelvis, lying between the inferior fascia of the urogenital diaphragm and… … Wikipedia
