APs are said to be all-or-none: This means that all APs
A) are the same.
B) in a particular neuron are the same.
C) travel at the same speed.
D) all of the above
E) both A and C

Question

Quizplus · Accepted Answer

APs are all-or-none within a particular neuron, meaning that they either occur fully or not at all. This is because they rely on the threshold stimulus needed to trigger an action potential, which must be reached in order for the AP to occur. However, APs can vary between different neurons in terms of their amplitude, duration, and frequency. Therefore, option A is not correct. Option C is also not entirely accurate, as APs can travel at different speeds depending on factors such as myelination and axon diameter. Option D is incorrect because only option B is true. Option E is incorrect because option A is not true.

APs Are Said to Be All-Or-None: This Means That All