…The clear fluid that fills the subarachnoid space is connected to the fluid that fills the ventricles of the brain and is called cerebrospinal fluid or, more simply, CSF. The arachnoid membrane of the brain forms protrusions called arachnoid granules (also called Pacchioni bodies) in some places, which are thought to direct the cerebrospinal fluid in the pial cavity to the venous sinuses inside the dura mater. The pia mater of the spinal cord has protrusions called the dentate ligaments extending to both sides, which are attached to the inner surface of the dura mater and help to fix the position of the spinal cord in the spinal canal. … *Some of the terminology that mentions "Pacchioni body" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…くも膜下腔を満たしている透明な液は,脳室内を満たすものと交通していて,脳脊髄液あるいはもっと簡単に髄液と呼ばれる。脳のくも膜は場所によって外方に向かってくも膜顆粒(パッキオニ顆粒Pacchioni bodyともいう)という突出部をつくるが,これは軟膜腔内の髄液を硬膜内部の静脈洞に導きだす装置と考えられている。脊髄の柔膜からは左右両側へ向かって歯状靱帯(じんたい)という突出部がでていて,これは硬膜の内面に付着しており,脊柱管内における脊髄の位置を固定するのに役だっている。… ※「Pacchioni body」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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