Question

Distinguish between white matter and grey matter.

Answer 1

1. White matter is tissue in the brain composed of nerve fibers which are called axons that connect nerve cells and are covered by myelin (a type of fat).
2. Grey matter makes up the outermost layer of the brain that enables individuals to control movement, memory, and emotions.

White matter:	Grey matter:
White matter forms the peripheral layer which is is found in the deeper tissues of the brain	The grey matter is centrally located in H-shaped region
White matter fills up 60 percent of the brain.	Grey matter fills up 40 percent of the brain.
Myelin which is is an insulating layer, or sheath that forms around nerves, gives the white matter its color	High concentration of neuronal cell bodies is responsible for its color.