Label Figure Q2-29 with the Following Terms: Action Potential Threshold

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The Answer is A.The threshold is the voltage at which an action potential is generated. In Figure Ait is the point at which there are some 'failures' and a single action potential (2) The subthreshold stimulus refers to the current pulse stimulus that is given that does not generate an action potential. Either stimulus 1 or 2 are correct. The suprathreshold stimulus refers to any stimulus that generates an action potential. In this case, either of the last two stimuli is correct.

A.The threshold is the voltage at which an action potential is generated. In Figure Ait is the point at which there are some 'failures' and a single action potential (2) The subthreshold stimulus refers to the current pulse stimulus that is given that does not generate an action potential. Either stimulus 1 or 2 are correct. The suprathreshold stimulus refers to any stimulus that generates an action potential. In this case, either of the last two stimuli is correct. Figure A2-29 B. The rise time of the action potential is faster. This is because the larger current is able to activate more sodium channels, which brings the membrane potential to threshold faster by starting the regenerative process faster. C. If you increase the duration of the stimulus, you will get more action potentials per unit time. If this is a neuron with different intrinsic membrane properties you may get different activity patterns, but the basic answer is an increase in frequency of action potentials.

Figure A2-29
B. The rise time of the action potential is faster. This is because the larger current is able to activate more sodium channels, which brings the membrane potential to threshold faster by starting the regenerative process faster.
C. If you increase the duration of the stimulus, you will get more action potentials per unit time. If this is a neuron with different intrinsic membrane properties you may get different activity patterns, but the basic answer is an increase in frequency of action potentials.

Label Figure Q2-29 with the Following Terms: Action Potential Threshold

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Label Figure Q2-29 with the Following Terms: Action Potential Threshold

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Correct Answer:VerifiedShow Answer

Correct Answer:
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