The Meninges of the Brain
1-The Dura mater.
2-The Arachnoid mater .
3The Pia mater.
2-The Arachnoid mater .
3The Pia mater.
1-The Dura mater:
-The dura mater is as two layers:
the endosteal layer and the meningeal layer.
These are closely united except along certain lines,
where they separate to form venous sinuses & folds
which act as septae forming cranial cavity compartments.
- Dural folds :
- Falx cerebri
- Tentorium cerebelli
- Falx cerebelli
-The arachnoid mater is a delicate, impermeable membrane
covering the brain and lying between the pia mater
internally and the dura mater externally.
- It is separated from the dura by a potential space, the subdural space,
- It is separated from the pia by the subarachnoid space,
which is filled with cerebrospinal fluid.
2-The pia mater :
-The pia mater is a vascular membrane that
closely invests the brain,covering the gyri and
descending into the deepest sulci.
See you,
Dr Ibrahim
Dr Ibrahim
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