Which of the following is the middle layer of the meninges?
A
Dura matter
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B
Pia matter
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C
Arachnoid matter
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D
None of the above
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Solution
The correct option is C Arachnoid matter The arachnoid mater is the middle of three layers that make up the meninges, or membranes, that surround the spinal cord and brain. The dura mater is the outermost layer of the meninges. The innermost layer that contours closely to the many folds and crevices of the brain is called the pia mater. The space between the membrane is filled with cerebrospinal fluid.