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Increasing the strength of action potential will change) the size of action potential. (increase/decrease/ not Increasing the strength of action potential will change) the frequency of action potential. (increase/decrease/ not

Increasing the strength of action potential will change) the size of action potential. (increase/decrease/ not Increasing the strength of action potential will change) the frequency of action potential. (increase/decrease/ not

Human Anatomy & Physiology (11th Edition)
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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**Understanding Action Potential** - Increasing the strength of action potential will __________ (increase/decrease/not change) the size of action potential. - Increasing the strength of action potential will __________ (increase/decrease/not change) the frequency of action potential. **Explanation:** In the context of nerve cells, an action potential is a rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane. The "strength" of a stimulus or a graded potential does not alter the size of an action potential; rather, it is an all-or-nothing event. However, increasing the strength of the stimulus can affect the frequency of action potentials. This is because, while the amplitude or size of an action potential remains constant, a stronger stimulus can increase the rate at which action potentials are generated.
Transcribed Image Text:**Understanding Action Potential** - Increasing the strength of action potential will __________ (increase/decrease/not change) the size of action potential. - Increasing the strength of action potential will __________ (increase/decrease/not change) the frequency of action potential. **Explanation:** In the context of nerve cells, an action potential is a rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane. The "strength" of a stimulus or a graded potential does not alter the size of an action potential; rather, it is an all-or-nothing event. However, increasing the strength of the stimulus can affect the frequency of action potentials. This is because, while the amplitude or size of an action potential remains constant, a stronger stimulus can increase the rate at which action potentials are generated.
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Depolarization occurs when the inner side of the membrane turns less negative than it is in the resting state.  This happens when more positively charged ions flow inside the membrane. In contrast, hyperpolarization takes place when positively charged ions flow outside from the inside of the membrane, the inside becomes more negative than it is in the resting state. 

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