Muscles of the female perineum. (Ischiocavernosus visible at upper right.)
Muscles of male perineum. (Ischiocavernosus visible at upper left.)
|Insertion||Crus of Penis|
|Actions||assists the bulbospongiosus muscle|
|Anatomical terms of muscle|
The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women.
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.
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.
- -194314163 at GPnotebook
- Origin, insertion and nerve supply of the muscle at Loyola University Chicago Stritch School of Medicine
- Anatomy photo:41:11-0101 at the SUNY Downstate Medical Center - "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