NEET PG DENTAL EXAM

Detailed explanation-1: -The grey matter does extend to the spinal cord to make signaling more effective. Unlike the structure of the spinal cord, the grey matter in the brain is present in the outermost layer. The grey matter surrounding the cerebrum is known as the cortex of the brain.

Detailed explanation-2: -The grey matter is mainly composed of neuronal cell bodies and unmyelinated axons. Axons are the processes that extend from neuronal cell bodies, carrying signals between those bodies.

Detailed explanation-3: -Grey matter (or gray matter) makes up the outermost layer of the brain and is pinkish grey in tone, hence the name grey matter. It gets its grey tone from the high concentration of neuronal cell bodies it contains. Grey matter also contains unmyelinated axons.

Detailed explanation-4: -The gray matter regions of the CNS, the brain and spinal cord, contrast with the white matter regions. The gray matter is the areas where the actual “processing” is done whereas the white matter provides the communication between different gray matter areas and between the gray matter and the rest of the body.