坐骨海綿体筋
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/01/18 20:45:10」(JST)
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| Ischiocavernosus muscle |
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| Muscles of the female perineum. (Ischiocavernosus visible at upper right.) |
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| Muscles of male perineum. (Ischiocavernosus visible at upper left.) |
| Latin |
musculus ischiocavernosus |
| Gray's |
subject #120 428 |
| Origin |
Ischial Tuberosity |
| Insertion |
Crus of Penis |
| Artery |
Perineal artery |
| Nerve |
pudendal nerve |
| Actions |
assists the bulbospongiosus muscle |
The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women.
Contents
- 1 Function
- 2 Fibers
- 3 Additional images
- 4 External links
Function[edit]
It helps flex the anus, and (in males) stabilize the erect penis or (in females) tense the vagina during orgasm. Kegel exercises (also known as pelvic floor exercises) can help tone the ischiocavernosus muscle.
Ischiocavernosus compresses the crus penis, and retards the return of the blood through the veins, and thus serves to maintain the organ erect.
Fibers[edit]
It arises by tendinous and fleshy fibers from the inner surface of the tuberosity of the ischium, behind the crus penis; and from the rami of the pubis and ischium on either side of the crus.
From these points fleshy fibers succeed, and end in an aponeurosis which is inserted into the sides and under surface of the crus penis.
Additional images[edit]
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Right hip bone. Internal surface.
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Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front.
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The superficial branches of the internal pudendal artery.
External links[edit]
- -194314163 at GPnotebook
- LUC isho
- SUNY Labs 41:11-0101 - "The Female Perineum: Muscles of the Superficial Perineal Pouch"
- SUNY Figs 41:05-01 - "Muscles of the female superficial perineal pouch."
- SUNY Figs 42:04-01 - "Muscles of the male superficial perineal pouch. "
- Intelihealth page with good diagram
This article incorporates text from a public domain edition of Gray's Anatomy.
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List of muscles of perineum (TA A09.5, GA 4.425)
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| Perineum |
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Anal triangle
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sphincter ani (externus, internus)
Ischioanal fossa · Pudendal canal
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Urogenital triangle
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superficial perineal pouch (superficial transverse perineal, bulbospongiosus, ischiocavernosus)
deep perineal pouch (deep transverse perineal, sphincter urethrae membranaceae)
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Middle
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Perineal body
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| Fascia |
superficial fascia: panniculus adiposus (Fascia of Camper) · stratum membranosum (Dartos, Superficial perineal fascia, Fascia of Colles)
deep fascia: Fascia of perineum · Buck's fascia · Perineal membrane/"Inferior fascia of UGD"
"Urogenital diaphragm" · "Superior fascia of UGD"
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anat (h/n, u, t/d, a/p, l)/phys/devp/hist
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noco (m, s, c)/cong (d)/tumr, sysi/epon, injr
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UpToDate Contents
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English Journal
- Distribution of caveolin in the muscle spindles of human skeletal muscle.
- Peikert K1, Kasper M, May CA.
- Journal of anatomy.J Anat.2014 Jun;224(6):681-7. doi: 10.1111/joa.12173. Epub 2014 Mar 25.
- The aim of the present study was to demonstrate the location of the different members of the caveolin (cav) family in human muscle spindles. Twenty spindles of three human muscles (vastus medialis, ischiocavernosus, bulbospongiosus) from 12 cadavers were immunohistochemically stained for cav-1, cav-
- PMID 24660982
- The role of pelvic and perineal striated muscles in urethral function during micturition in female rabbits.
- Corona-Quintanilla DL1, Zempoalteca R, Arteaga L, Castelán F, Martínez-Gómez M.
- Neurourology and urodynamics.Neurourol Urodyn.2014 Apr;33(4):455-60. doi: 10.1002/nau.22416. Epub 2013 May 1.
- AIM: To evaluate the role of pelvic and perineal striated muscles on urethral function during micturition.METHODS: Pubococcygeus, or both bulbospongiosus and ischiocavernosus muscles were electrically stimulated during the voiding phase of micturition, and bladder and urethral pressure were simultan
- PMID 23636895
- An alternate dissection approach to the female urogenital triangle.
- Hall MI1, Walters LM.
- Clinical anatomy (New York, N.Y.).Clin Anat.2013 Sep;26(6):751-4. doi: 10.1002/ca.22287. Epub 2013 Jul 3.
- Traditional dissections of the female urogenital (UG) triangle can lead to early destruction of the erectile tissues, associated musculature, and neurovascular structures. Here, we present an alternate dissection of the female UG triangle. Rather than begin the female UG triangle dissection with the
- PMID 23825011
Japanese Journal
- The Morphological and Histological Characters of the Male External Genitalia of the House Musk Shrew, Suncus murinus(Morphology)
- Kamikawa-Miyado Mami,Ogi Hidenao,Ogino Yukiko [他],Katoh Hironori,Suzuki Kentaro,Uemura Masanori,Kitoh Junzoh,Oda Sen-ichi,Yamada Gen
- Zoological science 22(4), 463-468, 2005-04-25
- … It was shown that the external genitalia of suncus possessed a muscular structure, which we proposed as musculus ischiocavernosus dorsalis of suncus. … The musculus ischiocavernosus dorsalis is originated from the inner surface of the tuber ischiadicum and was allocated adjacent to the corpus cavernosum penis. …
- NAID 110006280509
Related Links
- musculus ischiocavernosus musculus ischiococcygeus musculus keratopharyngeus musculus laryngopharyngeus musculus latissimus dorsi musculus levator alae nasi musculus levator anguli oris musculus levator anguli ...
- Musculus ischiocavernosus information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Musculus ischiocavernosus Description of Musculus ischiocavernosus
★リンクテーブル★
[★]
- 英
- ischiocavernous muscle (M,N), ischiocavernosus muscle, ischiocavernous (K,KL)
- ラ
- musculus ischiocavernosus
- 関
- 浅会陰隙、球海綿体筋
解剖
機能 (K.41)