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The tunica albuginea ( ) is the fibrous covering of the testis. It is a dense blue-grey membrane, composed of bundles of white fibrous tissue which interlace in every direction. It is covered by the tunica vaginalis, except at the points of attachment of the epididymis to the testis, and along its posterior border, where the spermatic vessels enter the gland. It is applied to the tunica vasculosa over the glandular substance of the testis, and, at its posterior border, is reflected into the interior of the gland, forming an incomplete vertical septum, called the mediastinum testis (corpus Highmori). ==Additional images== File:Gray1145.png|Transverse section through the left side of the scrotum and the left testis. File:Gray1114.png|Section of a genital cord of the testis of a human embryo 3.5 cm. long. File:Gray1149.png|Vertical section of the testis, to show the arrangement of the ducts. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tunica albuginea of testis」の詳細全文を読む スポンサード リンク
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