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| spermatic cord ： ウィキペディア英語版 |
spermatic cord
The spermatic cord is the cord-like structure in males formed by the vas deferens (ductus deferens) and surrounding tissue that runs from the deep inguinal ring down to each testicle. Its serosal covering, the tunica vaginalis, is an extension of the peritoneum that passes through the transversalis fascia.
==Structure==
The spermatic cord is ensheathed in three layers of tissue:
* ''external spermatic fascia'', an extension of the innominate fascia that overlies the aponeurosis of the external oblique muscle
* ''cremasteric muscle and fascia'', formed from a continuation of the internal oblique muscle and its fascia
* ''internal spermatic fascia'', continuous with the transversalis fascia
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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