Ischiocavernosus muscle
| Ischiocavernosus muscle | |
|---|---|
 Muscles of male perineum (ischiocavernosus visible at upper left) | |
 Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front. | |
| Details | |
| Origin | Ischial tuberosity |
| Insertion | Crus of penis (male) or crus of clitoris (female) |
| Artery | Perineal artery |
| Nerve | Pudendal nerve |
| Actions | Maintains penile erection (male) or clitoral erection (female) |
| Identifiers | |
| Latin | musculus ischiocavernosus |
| TA98 | Lua error in Module:Wikidata at line 746: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terms of muscle [[[d:Lua error in Module:Wikidata at line 865: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]] | |
The ischiocavernosus muscle (erectores penis or erector clitoridis in older texts) is a muscle just below the surface of the perineum, present in both men and women.[1]
Structure
[edit | edit source]It arises by tendinous and fleshy fibers from the inner surface of the tuberosity of the ischium, behind the crus penis; and from the inferior pubic rami 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.
Function
[edit | edit source]In females, the ischiocavernosus muscle assists with clitoral erection.[2] In males, it helps to stabilize the erect penis by compressing the crus penis and retarding the return of blood through the veins.
Additional images
[edit | edit source]-
Right hip bone, internal surface
-
Muscles of the female perineum (ischiocavernosus visible at upper left)
-
The superficial branches of the internal pudendal artery
References
[edit | edit source]
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
[edit | edit source]- Anatomy photo:41:11-0101 at the SUNY Downstate Medical Center - "The Female Perineum: Muscles of the Superficial Perineal Pouch"
- Anatomy figure: 41:05-01 at Human Anatomy Online, SUNY Downstate Medical Center - "Muscles of the female superficial perineal pouch."
- Anatomy figure: 42:04-01 at Human Anatomy Online, SUNY Downstate Medical Center - "Muscles of the male superficial perineal pouch. "
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