MEDICAL PHYSIOLOGY

Detailed explanation-1: -Besides this group of neuronal cells, the axons of grey matter are not heavily myelinated, unlike white matter, which contains a high concentration of myelin.

Detailed explanation-2: -In the grey matter, these axons are mainly unmyelinated, meaning they are not covered by a whitish-colored, fatty protein called myelin. The grey matter serves to process information in the brain. Structures within the grey matter process signals generated in the sensory organs or other areas of the grey matter.

Detailed explanation-3: -White matter refers to areas of the central nervous system (CNS) that are mainly made up of myelinated axons, also called tracts.

Detailed explanation-4: -The white matter is composed of bundles of myelinated axons (few cell bodies) that connect various grey matter regions. Myelin is a thin layer, around the axons of white matter neurons and provides the white coloration.

Detailed explanation-5: -Grey matter refers to unmyelinated neurons and other cells of the central nervous system. It is present in the brain, brainstem and cerebellum, and present throughout the spinal cord.