The conduction velocity of a nerve impulse is slower in myelinated fibres than in unmyelinated fibres because myelin acts as an insulator that slows the flow of current.

Question

Quizplus · Accepted Answer

The statement is incorrect. The conduction velocity of a nerve impulse is actually faster in myelinated fibers compared to unmyelinated fibers, as myelin helps to increase the speed of nerve impulse transmission. Myelin acts as an insulator that helps to prevent the leakage of electrical current across the axon membrane and allows the impulse to travel along the myelinated segment, jumping from one node of Ranvier to the next, a process known as saltatory conduction.

The Conduction Velocity of a Nerve Impulse Is Slower in Myelinated