What does white matter mean?

White matter is a normal part of the brain. The brain is divided into white matter and gray matter. Gray matter is generally concentrated in the cerebral cortex, which is the main part of neuron cell body. White matter is generally concentrated in the semi-oval center and basal ganglia, which is the part where neuron axons and myelin sheath are concentrated, that is, where conduction bundles are located. Imaging often has white matter disease, cerebral white matter ischemic changes, cerebral white matter demyelination, etc. Description, are specifically white matter myelin lesions or axonal damage caused by a series of imaging changes. Because white matter and nerve conduction related, so when injured will also show neurological dysfunction, mild symptoms will show cognitive decline such as memory impairment, more serious will also show emotional disorders, organic mental disorders.