In the spinal cord the gray matter is found only as an H-shaped area in the center of the cord. But within the brainstem the gray matter diverges, passing through the center of the cerebrum and terminating in the gray matter of the cortex (see below). The cerebellum has its own gray and white matter distribution which is like that of the cortex. Other parts such as the basal nuclei have both gray and white matter. Gray matter in the brain functions much like that in the cord: it is the site of connections between neurons and contains the cell bodies of motor and interneurons. It is composed of unmyelinated neurons. White matter in the brain, like that in the spinal cord, is composed of myelinated fibers in tracts which carry information from one place to another.