Question

Which of the following is NOT a location where one would expect to find cerebrospinal fluid

1. subarachnoid space
2. subdural space
3. fourth ventricle of the brain

Answer 1

The subdural space is NOT a location where cerebrospinal fluid is found; it is present in the subarachnoid space and the ventricles of the brain, such as the fourth ventricle.

Step-by-step explanation:

The location where one would NOT expect to find cerebrospinal fluid (CSF) among the options given is the subdural space. CSF is found in the subarachnoid space and within the cerebral ventricular system, including the fourth ventricle of the brain. The subdural space, which lies between the dura mater and the arachnoid mater, is typically a potential space and does not contain CSF in normal physiological conditions.