Neuron Structure and Action Potentials
Anatomy and Physiology · Flashcards
ANATOMY AND PHYSIOLOGY · FLASHCARDS
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QUESTION
Which two axon properties increase action potential conduction velocity?
QUESTION
Why can no stimulus trigger a second action potential during the absolute refractory period?
QUESTION
What does the all-or-none principle state about action potentials?
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ANSWER
Once threshold is reached, an action potential fires at full amplitude. Stimulus strength is coded by firing frequency, not by spike size.
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