Which of the following is not a true statement about the conduction of action potentials (APs)in axons? A)The inward Na⁺ current of an AP generates an AP in the neighboring node of a myelinated axon. B)All APs in a given axon typically are identical in magnitude and duration. C)An action potential experimentally generated by a depolarization in the middle of an axon is conducted in only one direction from the site of initiation. D)The velocity of AP conduction is positively correlated with axon diameter. E)The frequency of APs is limited by the length of the refractory period.

Question

Quizplus · Accepted Answer

Action potentials (APs) are conducted in both directions from the site of initiation, not just in one direction. This bidirectional conduction occurs unless there are mechanisms in place to prevent backward propagation, such as the refractory period following an AP that temporarily makes the neuron unable to fire another AP in the same region.

Which of the Following Is Not a True Statement About