Question

The application of a suprathreshold stimulus results in... a) greater amplitude of the action potential b)...

The application of a suprathreshold stimulus results in...

a) greater amplitude of the action potential
b) both a greater magnitude and more rapid propogation of the action potential
c) more rapid propogation of the action potential
d) no change to the action potential
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Answer #1

The application of a suprathreshold stimulus results in

b)  both a greater magnitude and more rapid propogation of the action potential

If a stimulus is greater than threshold stimulus, it enhances the frequency of action potentials. Suprathreshold stimulus are large in magnitude, and thus bring out action potential in excitable cells. Generally, it can causes depolarization of the membrane, and the magnitude of the depolarization is much greater than what is necessary.

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