Neidio i'r prif gynnwy

Saesneg: white matter of the brain

Cymraeg: gwynnin yr ymennydd

Rhan ymadrodd

Enw, Gwrywaidd, Unigol

Diffiniad

White matter is a component of the central nervous system, in the brain and superficial spinal cord, and consists mostly of glial cells and myelinated axons that transmit signals from one region of the cerebrum to another and between the cerebrum and lower brain centers.