part of part of location of location of adjacent to adjacent to subarachnoid space http://upload.wikimedia.org/wikipedia/commons/5/5f/Gray769-en.svg http://upload.wikimedia.org/wikipedia/commons/f/f8/Gray769.png BTO:0000230 spatium leptomeningeum subarachnoid space of neuraxis spatium subarachnoideum subarachnoid space of central nervous system MESH:D013346 cavum subarachnoideale GAID:689 UBERON:0000315 FMA:83716 Wikipedia:Subarachnoid_space SCTID:362311001 subarachnoid cavity subarachnoid space of CNS The space between the arachnoid and pia mater. cavitas subarachnoidea EMAPA:32666 anatomical space cerebrospinal fluid blood vessel pia mater arachnoid mater meningeal cluster