Enclosed within the skull is the central organ of the nervous system--the '''brain'''. There are "three major divisions of the brain: the '''forebrain''', the '''midbrain''', and the '''hindbrain'''." The appearance of the brain is made up of both '''grey''' and '''white matter'''. | Enclosed within the skull is the central organ of the nervous system--the '''brain'''. There are "three major divisions of the brain: the '''forebrain''', the '''midbrain''', and the '''hindbrain'''." The appearance of the brain is made up of both '''grey''' and '''white matter'''. |