NEET PG DENTAL EXAM

Detailed explanation-1: -Three layers of membranes known as meninges protect the brain and spinal cord. The delicate inner layer is the pia mater. The middle layer is the arachnoid, a web-like structure filled with fluid that cushions the brain. The tough outer layer is called the dura mater .

Detailed explanation-2: -The subarachnoid space is the cerebrospinal fluid-filled space that exists between the arachnoid and the pia. Within the lateral ventricles of the brain, the choroid plexus produces CSF, which passes into the subarachnoid space via the foramina of Luschka.

Detailed explanation-3: -The most important function of the arachnoid mater is to house the arachnoid space. This space is created by the crisscrossing fibers called arachnoid trabeculae which connect the layer to the pia mater while creating a passageway.