In sensory receptors

safaTerkawi

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2022-08-09

In sensory receptors.

Stimulus energy is converted into a local depolarization.
The generator potential is graded and self-propagating.
A generator potential can be produced by only one form of energy.
The frequency of action potentials generated doubles when the strength of the stimulus doubles.
Serving touch sensation, constant suprathreshold stimulation causes action potentials to be generated at a constant rate.

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safaTerkawi

2022-08-09

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A. True This is the generator potential.

B. False It is graded but not propagated.

C. False But sensitivity is greatest to one form of energy – the ‘adequate stimulus’.

D. False Frequency is related to the logarithm of the strength of the stimulus.

E. False Frequency falls with time due to adaptation

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