Where is CSF normally found?
A. In the subarachnoid space
B. Between the dura and the skull
C. In the subdural space
D. Between the pia mater and the brain
E. None of the above
ANS: A
Rationale: CSF flows from the lateral ventricles into the third ventricle via the interventricular foramina and then into the fourth ventricle via the cerebral aqueduct. After exiting the fourth ventricle, CSF enters the subarachnoid space, where it flows around the brain and spinal cord.
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