The nervous system is formed of two parts that are central nervous system and peripheral nervous system. The brain and spinal cord known as the central nervous system, which are covered by the skull and vertebral column, respectively. The spinal and cranial nerves make up the peripheral nervous system. The brain is divided into three sections. The cerebrum, cerebellum, and brainstem are the three parts of the brain. The cerebral hemispheres are two half-balls that make up the cerebrum. Numerous folds called gyri characterize both hemispheres that seriously increases the surface area of the cerebral cortex. These gyri are divided by grooves known as sulci. The cerebrum is divided into white matter and grey matter. The grey matter forms the superficial cortex (cells of cerebral cortex). The white matter in the internal area is made up of nerve fibres that are categorised according to their path and connections. Voluntary movement, sensation interpretation, speech, memory, emotional and logical responses, and consciousness are all handled by the cerebral cortex. The cerebellum is the second largest part of the brain after cerebrum and the largest part of the hindbrain. The cerebellum takes its name from its diminutive of "cerebrum". This is typically observable in German, where it is termed Kleinhirn ("small brain"). Cerebellum is divided into superior surface and inferior surface by deep horizontal fissure that is found along the margin of the cerebellum. Superior vermis lies between the two cerebellar hemispheres on superior surface. The anterior part of superior vermis is the lingual that lies in contact with the superior medullary vellum, which is a thin sheet of white matter strained between the two superior cerebellar peduncles. While, the inferior vermis lies in vallecula, which is a deep groove between the two cerebellar hemispheres inferiorly