Ischiocavernosus muscle

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Ischiocavernosus muscle
File:Ischiocavernosus-female.png
Muscles of the female perineum (ischiocavernosus visible at upper right)
File:Ischiocavernosus-male.png
Muscles of male perineum (ischiocavernosus visible at upper left)
Details
Latin musculus ischiocavernosus
Origin Ischial Tuberosity
Insertion Crus of penis
Perineal artery
Pudendal nerve
Actions Assists the bulbospongiosus muscle (in males, empties the urethra; in females, clenches the vagina)
Identifiers
Dorlands
/Elsevier
m_22/12549534
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TH {{#property:P1694}}
TE {{#property:P1693}}
FMA {{#property:P1402}}
Anatomical terms of muscle
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The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women.[1]

Structure

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.

Function

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.

Additional images

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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External links