During a relative refractory period of an action potential A.Another action potential can be fired, it just takes a greater stimulus for the membrane potential to reach threshold B.Na+ channels are either already open or are inactivated therefore the membrane absolutely can not produce another action potential, no matter how intense the stimulus C.Ca++ flows out of the cell, causing hyperpolarization and a need for a greater stimulus to generate the action potential D.The presynaptic neuron "tells" the postsynaptic neuron about the "relative" strength of signal E.None of the above are correct

Action potential (AP) is the mode through which a neuron transports electrical signals. It is…

Answered: During a relative refractory period of…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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During a relative refractory period of an action potential

	A.	Another action potential can be fired, it just takes a greater stimulus for the membrane potential to reach threshold
	B.	Na+ channels are either already open or are inactivated therefore the membrane absolutely can not produce another action potential, no matter how intense the stimulus
	C.	Ca++ flows out of the cell, causing hyperpolarization and a need for a greater stimulus to generate the action potential
	D.	The presynaptic neuron "tells" the postsynaptic neuron about the "relative" strength of signal
	E.	None of the above are correct

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