Saltatory conduction
A) occurs in unmyelinated nerve fibers.
B) is slower than conduction by local current flow because the myelin acts as an insulator to slow the impulse down.
C) involves the impulse jumping from one node of Ranvier to the adjacent node.
D) refers to the action potential spreading from one Schwann cell to the adjacent Schwann cell.
E) more than one of these answers.

Question

Quizplus · Accepted Answer

Saltatory conduction involves the impulse jumping from one node of Ranvier (the gaps in the myelin sheath) to the next adjacent node, allowing for faster conduction compared to unmyelinated fibers or conduction by local current flow. Myelin actually acts as an insulator to increase the speed of the impulse. The action potential does not spread from one Schwann cell to the next.

Saltatory Conduction