Title Chapter - 2 Control_and_Coordination.pdf ✅

ChemContent Parts of the Brain 1. Cerebrum •It is divided into two cerebral hemispheres connected to each other by the corpus callosum.The walls have an outer cortex and inner medulla. •The cortex contains cell bodies of the neuron and is greyish incolour; hence, it is called grey matter. •The medulla consists of axons of the nerve fibres and is called white matter. 2. Cerebellum •It is located at the base of the cerebrum. •It has numerous furrows. 3. Medulla Oblongata •It is located at the base of the skull. •It is roughly triangular. •It continues behind the brain as the spinal cord. •Injury to the medulla oblongata results in death. B.The Spinal Cord • Extends from the medulla oblongata down to almost the whole length of the backbone and ends at the second lumbar vertebra. • The grey matter is on the inner side and white matter is on the outer side of the spinal cord. • The spinal cord is responsible for reflexes below the neck. • It conducts sensory impulses from the skin and muscles to the brain.