Arachnoid granulation

（重定向自Arachnoid villi）

Arachnoid granulations (or arachnoid villi) are small protrusions of the arachnoid (the thin second layer covering the brain) through the dura mater (the thick outer layer). They protrude into the venous sinuses of the brain, and allow cerebrospinal fluid (CSF) to exit the sub-arachnoid space and enter the blood stream.

单词	Arachnoid villi
释义	Arachnoid villi 英语例句库 Primary (congenital) hydrocephalus is apparently due to failure of arachnoid villi to resorb CSF at an adequate rate. 水脑症，原发性的水脑症是因为蜘蛛膜小梁对脑脊液的再吸收出现异常。英语百科 Arachnoid granulation （重定向自Arachnoid villi） Arachnoid granulations (or arachnoid villi) are small protrusions of the arachnoid (the thin second layer covering the brain) through the dura mater (the thick outer layer). They protrude into the venous sinuses of the brain, and allow cerebrospinal fluid (CSF) to exit the sub-arachnoid space and enter the blood stream.
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