GENERAL HISTOLOGY

Detailed explanation-1: -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. The grey matter does extend to the spinal cord to make signaling more effective.

Detailed explanation-2: -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-3: -In the cerebrum and cerebellum, white matter is predominantly found in deeper areas – with gray matter coating the white matter (figure 1).