Final answer:
The myelin sheaths around axons within the CNS (Central Nervous System) are formed by special cells known as Oligodendrocytes, which helps boost the efficiency of electrical signals along the axon.
Step-by-step explanation:
The myelin sheaths around axons within the CNS (Central Nervous System) are formed by special cells known as Oligodendrocytes. These cells extend their processes to make contact with the axons, wrapping around them multiple times to create a thick layer of fatty insulating material we refer to as the myelin sheath. This myelin sheath helps increase the speed and efficiency of electrical signals (action potentials) along the axon, enhancing overall neural communication within the CNS.
Learn more about Myelin Sheaths