Which option lists the white matter region in the cerebrum?

Which option lists the white matter region in the cerebrum?

• A. Gray matter of cerebrum
• B. White matter of cerebrum
• C. White matter of cerebellum
• D. Gray matter of cerebellum

Answer: (B)

In the cerebrum, the outer gray matter forms the cerebral cortex, while the inner portion consists of white matter made up of myelinated nerve fibers that connect different parts of the brain. The white matter region specific to the cerebrum is called white matter of the cerebrum. It houses the major communication pathways, such as tracts that link the left and right hemispheres (like the corpus callosum) and pathways that connect the cortex with other brain regions and the spinal cord. This distinguishes it from gray matter in the cerebrum (the cortex and deep gray nuclei) and from white matter and gray matter in the cerebellum, where the white matter is located in the interior as arbor vitae and the gray matter forms the surface cortex.

In the cerebrum, the outer gray matter forms the cerebral cortex, while the inner portion consists of white matter made up of myelinated nerve fibers that connect different parts of the brain. The white matter region specific to the cerebrum is called white matter of the cerebrum. It houses the major communication pathways, such as tracts that link the left and right hemispheres (like the corpus callosum) and pathways that connect the cortex with other brain regions and the spinal cord. This distinguishes it from gray matter in the cerebrum (the cortex and deep gray nuclei) and from white matter and gray matter in the cerebellum, where the white matter is located in the interior as arbor vitae and the gray matter forms the surface cortex.