NEET PG DENTAL EXAM

Detailed explanation-1: -The dura mater is composed of two layers: the periosteal/endosteal layer and the meningeal layer. The dural venous sinuses are between these two layers.

Detailed explanation-2: -The outermost mater of the meninges, the dura, is composed of two layers: the periosteal layer that lies closest to the calvarium and the meningeal layer that lies closest to the brain tissue. These together contribute to the dura being a thick, dense, fibrous membrane that is quite inelastic.

Detailed explanation-3: -The periosteal layer, which is the superficial layer of the dura within the calvarium, ends at the foramen magnum, with only the meningeal layer continuing down along the spinal cord.