Action potentials travel swiftly down:
A) axons with myelin and more slowly in axons without myelin.
B) axons without myelin and more slowly in axons with myelin.
C) dendrites with myelin and more slowly in dendrites without myelin.
D) dendrites without myelin and more slowly in dendrites with myelin.

Question

Quizplus · Accepted Answer

Axons with myelin have a higher conduction speed due to saltatory conduction, where the action potential "jumps" from one node of Ranvier to the next. This allows for faster and more efficient signaling. Axons without myelin have slower conduction because the action potential needs to travel along the entire length of the axon.

Action Potentials Travel Swiftly Down