The document discusses the three layers of meninges that cover the brain: the outer dura mater, middle arachnoid layer, and inner pia mater. The arachnoid layer is a thin, transparent membrane closely related to the inner surface of the dura mater. It is separated from the dura mater by a potential subdural space filled with capillary tissue fluid.

1. Cisterns
Dr chandra philip

3. Brain is covered
by 3 layers of
meninges
1) Outer
Duramater
2) Middle
Arachnoid
layer
3) Inner
piamater

4. Arachnoid mater is a thin transparent
membrane which is closely related to the
internal surface of duramater.
It is separated from the duramater by a
potential subdural space which is filled with
capillary layer of tissue fluid