The subarachnoid space is filled with:
ACirculating clots
BCirculating CSF
CCirculating CO2
DCirculating cells
Answer & Solution
Correct answer: B. Circulating CSF
1. It lies beneath the arachnoid mater.
2. It cushions the CNS.
3. The subarachnoid space is filled with circulating CSF, which provides a liquid cushion.
4. So the answer is circulating CSF.
_Source: OpenStax 'Anatomy and Physiology 2e', Ch 13 'Anatomy of the Nervous System'_
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