Question

the Axon is surrounded by a specialised insulator y sheath is called​

Answer 1

Answer:

Myelin is a lipid-rich (fatty) substance that surrounds nerve cell axons (the nervous system's "wires") to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon

Answer 2

Answer:

Neurons are specialized cells that receive and send signals to other cells through fragile and thin cellular extensions called axons. ... Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon.