| 词条 | Ischiocavernosus muscle | |||
| 释义 |
| Name = Ischiocavernosus muscle | Latin = musculus ischiocavernosus | Image = Ischiocavernosus-male.png | Caption = Muscles of male perineum (ischiocavernosus visible at upper left) | Image2 = Ischiocavernosus-female.png | Caption2 = Muscles of the female perineum (ischiocavernosus visible at upper right) | Origin = Ischial Tuberosity | Insertion = Crus of penis | Blood = Perineal artery | Nerve = Pudendal nerve | Action = Assists the bulbospongiosus muscle (in males, empties the urethra; in females, clenches the vagina) }} The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women.[1] StructureIt 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. FunctionIt helps (in males) stabilize the erect penis and (in females) tense the vagina during orgasm. Ischiocavernosus compresses the crus penis, and retards the return of the blood through the veins, and thus serves to maintain the organ erect. Additional imagesReferences{{Gray's}}1. ^{{cite book |editor1-last=Shaw|editor1-first=Robert| last1 = Maclean | first1= Allan|last2=Reid|first2=Wendy | title = Gynaecology | chapter=40|publisher = Churchill Livingstone/Elsevier | location = Edinburgh New York | year = 2011 | isbn = 978-0-7020-3120-5 |pages= 599–612|postscript=; Access provided by the University of Pittsburgh}} External links
2 : Muscles of the torso|Perineum |
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