Gray And White Matter Found Inside The Cerebellum
The cerebellum consists of two hemispheres which are connected by the vermis, a narrow midline area. Like other structures in the central nervous system, the cerebellum consists of grey matter and white matter: Grey matter - located on the surface of the cerebellum. It is tightly folded, forming the cerebellar cortex.
Grey matter forms the outer layer of the cerebrum, known as the cerebral cortex, and is also found in the cerebellum, brain stem, and deep within the cerebrum. In the spinal cord, grey matter is located at the center, forming a butterfly. This is due to the stemmed appearance of the white matter coated by the outer grey matter of the cortex.
When viewing a histological section of cerebellar tissue under the microscope, the lobulations and folia of the cerebellum are immediately evident. The central nervous system is made up of grey matter and white matter. However, grey matter plays the most significant part in allowing humans to function normally daily.[1] Grey matter makes up the outer most layer of the brain.
The white matter and grey matter are similar as they are both essential sections of both the brain as well as the spinal cord.[2] The grey matter gets its grey tone. The subdivisions of the cerebellar cortex correspond to the subdivisions of the cerebellum described above. Embedded within the central core of white matter there are masses of grey matter which constitute the cerebellar nuclei.
Figure 2. The Cerebellum. The cerebellum is situated on the posterior surface of the brain stem.
Major structures of the cerebellum include the the anterior lobe, posterior lobe, flocculonodular lobe, and arbor vitae. Descending input from the cerebellum enters through the large white matter structure of the pons. Ascending input from the periphery and spinal cord enters through the fibers of.
Key Points Gray matter is a major component of the central nervous system, consisting of neuronal cell bodies and other cells such as glia and dendrites. The white matter is composed of bundles of myelinated axons (few cell bodies) that connect various grey matter regions. Myelin is a thin layer, around the axons of white matter neurons and provides the white coloration.
The grey matter within the cerebellum is arranged in two ways. One part of the grey matter covers the outer surface of the cerebellum, forming the cerebellar cortex, while the rest of the grey matter is located in the white matter of the cerebellum as four pairs of nuclei. The central nervous system is made up of grey matter and white matter.
Gray matter: named for its pinkish-gray color, is home to neural cell bodies, axon terminals, and dendrites, as well as all nerve synapses. This brain tissue is abundant in the cerebellum, cerebrum, and brain stem. Like the cerebrum, the cerebellum is divided into two lateral hemispheres, which are connected by a medial part called the vermis.
Each of the hemispheres consists of a central core of white matter and a surface cortex of gray matter and is divided into three lobes.