Biology - Neural Control and Coordination Question with Solution | TestHub

Saltatory conduction is the propagation of action potentials along myelinated axons from one Node of Ranvier to the next. The myelin sheath acts as an electrical insulator, preventing the leakage of ions and allowing the depolarization to spread further and faster down the axon.

Because the action potential "jumps" from node to node, the speed of nerve impulse transmission is significantly increased compared to continuous conduction in unmyelinated fibers. In mammalian myelinated nerve fibers, the rate of saltatory conduction can reach up to approximately $120$ m/sec.

Answer: 120 m/sec