深会陰横筋
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/03/14 15:06:00」(JST)
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| Transverse perineal muscles |
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Muscles of the female perineum (transversus perinei visible at center right).
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Muscles of male perineum (transversus perinei visible at center right).
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| Details |
| Origin |
Inferior rami of the ischium |
| Insertion |
The deep transverse perineal muscle of the opposite side |
| Nerve |
Pudendal nerve |
| Latin |
Musculus transversus perinei |
Dorlands
/Elsevier |
m_22/12551254 |
| Anatomical terms of muscle
[edit on Wikidata]
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The transverse perineal muscles (transversus perinei) are the superficial and the deep transverse perineal muscles.
Contents
- 1 Superficial transverse perineal
- 2 Deep transverse perineal
- 3 References
- 4 External links
Superficial transverse perineal
The superficial transverse perineal muscle (transversus perinei superficialis) is a narrow muscular slip, which passes more or less transversely across the perineal space in front of the anus.
It arises by tendinous fibers from the inner and forepart of the ischial tuberosity and, running medially, is inserted into the central tendinous point of the perineum (perineal body), joining in this situation with the muscle of the opposite side, with the external anal sphincter muscle behind, and with the bulbospongiosus muscle in front.
In some cases, the fibers of the deeper layer of the external anal sphincter cross over 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 the bulbocavernosus muscle or the external sphincter.
Deep transverse perineal
The deep transverse perineal muscle lies in the perineum, a part of the pelvic floor. It arises from the inferior rami of the ischium and runs to the median plane, where it interlaces in a tendinous raphe with the other deep transverse perineal muscle of the opposite side.
The deep transverse perineal muscle is innervated by the pudendal nerve. The function of the muscle is fixation of the perineal body (central tendon of perineum), support of the pelvic floor, expulsion of semen in males and last drops of urine in both sexes.[1]
The deep transverse perineal muscle lies in the same plane as the urethral sphincter and formerly the two muscles were described together as the constrictor urethrae.
References
- ^ Saladin, Kenneth S. (2003). Anatomy & Physiology: The Unity of Form and Function (3rd ed.). McGraw−Hill. p. 354. ISBN 978-0072429039.
External links
- -697630643 at GPnotebook
- Anatomy photo:41:11-0103 at the SUNY Downstate Medical Center - "The Female Perineum: Muscles of the Superficial Perineal Pouch"
- Anatomy image:9148 at the SUNY Downstate Medical Center
- Anatomy image:9163 at the SUNY Downstate Medical Center
- Anatomy image:9172 at the SUNY Downstate Medical Center
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Muscles of perineum
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| Perineum |
| Anal triangle |
| sphincter ani |
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- Ischioanal fossa
- Pudendal canal
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| Middle |
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| Urogenital triangle |
| superficial perineal pouch |
- superficial transverse perineal
- bulbospongiosus
- ischiocavernosus
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| deep perineal pouch |
- deep transverse perineal
- sphincter urethrae membranaceae
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| Fascia |
| Superficial perineal fascia |
- Colles' fascia
- (in scrotum and penis: Dartos)
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| Deep perineal fascia |
- Deep perineal fascia / superficial investing fascia (Gallaudet's)
- (in penis: Deep fascia of the penis (Buck's))
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| Urogenital diaphragm |
- Inferior fascia (Perineal membrane)
- Superior fascia
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| Pelvic diaphragm |
- Inferior fascia
- Superior fascia
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UpToDate Contents
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English Journal
- Macroscopic and histotopographic study of the deep transverse perineal muscle (musculus transversus perinei profundus) in elderly Japanese.
- Nakajima F1, Takenaka A, Uchiyama E, Hata F, Suzuki D, Murakami G.
- Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft.Ann Anat.2007;189(1):65-74.
- Although the deep transverse perineal (DTP) muscle is welt known as the core of the urogenital diaphragm, most recent studies have denied its existence. In students' dissection classes, we cut the surfaces of 93 macroscopically identified urogenital diaphragms (59 male cadavers) and found the distin
- PMID 17319611
- [Morphological and functional characteristics of the urogenital diaphragm in women].
- Bazhenov DV1, Blinova NV.
- Morfologii͡a (Saint Petersburg, Russia).Morfologiia.2002;122(4):64-7.
- Macroscopical study of muscle layer of urogenital diaphragm in women has revealed two muscles situated between its superior and inferior fasciae--m. transversus perinei profundus (MTPP) and sphincter urethrae (SU),--which are separated by connective tissue. In females, SU is not ring-shaped, but is
- PMID 12596557
- The dispute about the external sphincter and the urogenital diaphragm.
- Dorschner W1, Biesold M, Schmidt F, Stolzenburg JU.
- The Journal of urology.J Urol.1999 Dec;162(6):1942-5.
- PURPOSE: Basic scientific facts, such as anatomical structures, are rarely subjected to critical reappraisal. Nevertheless, several clinical phenomena exist which are inconsistent with the description of the anatomy of the so-called external sphincter muscle and urogenital diaphragm.MATERIALS AND ME
- PMID 10569543
Related Links
- Looking for online definition of musculus transversus perinei profundus in the Medical Dictionary? musculus transversus perinei profundus explanation free. What is musculus transversus perinei profundus? Meaning of musculus ...
- 説明 Origin: Inferior rami of the ischium Insertion: Its fellow of the opposite side Artery: Pudendal nerve Description: MALE: The Transversus perinaei profundus arises from the inferior rami of the ischium and runs to the median line ...
★リンクテーブル★
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- 英
- deep transverse perineal muscle (M,N,K)
- ラ
- musculus transversus perinei profundus
- 関
- 尿生殖隔膜