Last Updated：2025/11/22
(neuroanatomy) The space between the arachnoid mater and the pia mater that surrounds the brain and spinal cord, through which the cerebrospinal fluid circulates and major blood vessels pass, and across which extend delicate trabeculae of connective tissue.
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subarachnoid space
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Source Word
subarachnoid space
Noun
Japanese Meaning
くも膜下腔 - 脳と脊髄を包むくも膜と軟膜の間に存在する空間。脳脊髄液が循環し、主要な血管が通過し、細かな結合組織の線維（トラベキュラ）が広がっている領域。
（ plural ）
