Cerebrospinal fluid in humans is present in the _______space.
Show Hint
- subdural
- subarachnoid
- pericardial
- epidural
The Correct Option is B
Solution and Explanation
Cerebrospinal fluid (CSF) is a clear fluid found in the brain and spinal cord. It provides cushioning and protection to the central nervous system. Step 1: Understanding the subarachnoid space.
The subarachnoid space is the space between the arachnoid mater and the pia mater, two of the three meninges that surround the brain and spinal cord. This space is filled with cerebrospinal fluid (CSF).
Step 2: Reviewing other options.
The subdural space is between the dura mater and the arachnoid mater, but it is not filled with CSF under normal conditions.
The pericardial space surrounds the heart and is filled with pericardial fluid, not CSF.
The epidural space is outside the dura mater and is filled with fat and blood vessels, not CSF.
Step 3: Conclusion. The correct answer is (B), as CSF is located in the subarachnoid space.
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