The crossword solution for the term BRAIN, WHITE MATTER OF is ALBA. ALBA is an acronym for 'Astrocytes, oligodendrocytes, microglia, and blood vessels associated'. This acronym refers to the four main components of the white matter of the brain. The white matter of the brain is composed of nerve fibers that connect different parts of the brain and spinal cord. It is responsible for transmitting signals between different areas of the brain and body.