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SUBARACHNOID SPACE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid
Classified under:
Hypernyms ("subarachnoid space" is a kind of...):
space (an empty area (usually bounded in some way between things))
Holonyms ("subarachnoid space" is a part of...):
meninges; meninx (a membrane (one of 3) that envelops the brain and spinal cord)
Context examples:
A disorder characterized by inflammation of the arachnoid membrane and adjacent subarachnoid space.
(Arachnoiditis, NCI Thesaurus/CTCAE)
It is separated from the pia mater by the subarachnoid space.
(Arachnoid Membrane, NCI Thesaurus)
Administration of drugs directly into spinal subarachnoid space in the cerebrospinal fluid, at any level of the cerebrospinal axis, including injection into the cerebral ventricles, in order to bypass the blood-brain barrier and achieve local, rapid effects on the meninges or cerebrospinal axis.
(Intrathecal Route of Administration, NCI Thesaurus)
Children with higher than usual volumes of cerebrospinal fluid in the subarachnoid space — the area just around the brain — were more likely to be diagnosed with autism later in life, with strong correlation in the high-risk group.
(Scientists say excess cerebrospinal fluid may serve as early sign of autism, Wikinews)
