Jisho

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まくくう 膜下腔
Noun
1. subarachnoid spaceAnatomy
Wikipedia definition
2. Subarachnoid spaceIn the central nervous system, the subarachnoid cavity (subarachnoid space) is the interval between the arachnoid membrane and pia mater. It is occupied by spongy tissue consisting of trabeculae (delicate connective tissue filaments that extend from the arachnoid mater and blend into the pia mater) and intercommunicating channels in which the cerebrospinal fluid is contained. This cavity is small on the surface of the hemispheres of the brain.
Read “Subarachnoid space” on English Wikipedia
Read “クモ膜下腔” on Japanese Wikipedia
Read “Subarachnoid space” on DBpedia
Other forms
クモ膜下腔 【くもまくかくう】蜘蛛膜下腔 【くもまくかくう】
Notes
蜘蛛膜下腔: Rarely-used kanji form.

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