its the dura mater, the layer is called the periosteal layer.
Tentorium Cerebelli
t is the tough leathery meningeal layer
Tentorium cerbelli
the dura
The middle meningeal layer is called the Arachnoid Mater. Its between the outermost Dura Mater and innermost Pia Mater
Pia Mater
Skin of scalp. Layered as followed from superficial to pia mater. skin of scalp peristuem skull bone dura mater-periosteal, meningeal arachnoid mater pia mater
The outermost protective covering the the brain is the dura mater, the outermost of the meningeal layers.
The layer that forms ions is ionosphere. It is a charged layer.
The outer most covering of the brain is called dura mater. It consists of two layers, the periosteal outer layer and meningeal inner layer.
The ozone forms a protective layer. It is present as ozone layer.