NEET PG DENTAL EXAM

Detailed explanation-1: -White matter is found buried in the inner layer of the brain’s cortex, while the grey matter is mainly located on the surface of the brain. The spinal cord is arranged in the opposite way, with grey matter found deep inside its core and the insulating white matter wrapped around the outside.

Detailed explanation-2: -These somas are circular structures that house the nucleus of the cells. The grey matter also extends from the brain into the spinal cord. The grey matter creates a hornlike structure throughout the inside of the spinal cord while the white matter makes up the surrounding sections of the spinal cord.

Detailed explanation-3: -Grey matter is classed as either superficial or deep. The superficial grey matter, also called brain cortex, is on the outside of the brain. The deep grey matter is made up of neurons from which originate deep nerve fibres.

Detailed explanation-4: -The most superficial layer of the meninges is the dura mater. While it has two layers in the cranial segment, the spinal dura mater only has the deep meningeal layer.