Q.

Which one is the correct sequence?
(From outside towards inside)


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a

Dura Mater-Arachnoid-Pia mater

b

Pia mater-Dura Mater-Arachnoid

c

Arachnoid-Pia mater-Dura mater

d

None of the above 

answer is A.

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Detailed Solution

Concept- Brain is covered by a protective layer that is meninges. The three meninges that cover brain are Dura mater, Arachnoid and Pia mater.
The brain is covered by protective layers called meninges. Meninges are three in number. these are dura mater, Arachnoid and pia matter. Dura mater is the outer layer and is thick and tough. The middle one is arachnoid and the inner one is the pia mater which is a thin layer. Pia mater layer is closest to the brain. These three meaninges not only surrounds the brain but also surrounds the spinal cord.
Hence, option 1 is the correct answer.
 
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