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Unformatted text preview: Define temporal and spatial summation and understand how they can influence the likelihood that a neuron will fire an action potential Explain how the movement of ions contributes to the generation and propagation of the action potential Explain why action potentials usually only travel in one direction Lecture 3 Objectives Explain the ionic basis for the refractory period. Compare absolute versus relative refractory period in terms of the likelihood a neuron will fire Describe what is meant by the action potential being All-or-None and being nondecrimental in its propagation Describe the 2 factors contributing to the velocity of the action potential...
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- Winter '10