Saltatory Propagation Differs from Continuous Propagation in That ________

Question

Saltatory propagation differs from continuous propagation in that ________.
A) saltatory propagation occurs when an action potential moves from node to node along myelinated axons
B) saltatory propagation is slower than continuous propagation.
C) continuous propagation occurs when an action potential moves from node to node along unmyelinated axons
D) There is no difference between the two types of action potential propagation.

Accepted Answer

Saltatory propagation occurs when an action potential jumps from one node of Ranvier to the next, along myelinated axons. This process is faster and requires less energy than the continuous propagation, which occurs in unmyelinated axons. Therefore, option A is the correct choice. Option B is incorrect because saltatory propagation is actually faster than continuous propagation. Option C is also incorrect as it describes the process of continuous propagation. Option D is incorrect as there is a clear difference between saltatory and continuous propagation.