RRB NTPC Prelims Model Paper 5 with solutions

(1) The function of the myelin sheath is to facilitate the conduction of electrical impulses through the nerve cells. The myelin sheath is made out of a modified plasma membrane that is wrapped around the nerve axon in a spiral pattern.The myelin sheath is essential for the proper functioning of the nervous system. The main purpose of myelin is to cover neuron cells so that it can conduct action potential more quickly.