Medical MCQ-The increase in the threshold of a receptor when a series of stimuli of subthreshold intensity are applied in succession is called

The increase in the threshold of a receptor when a series of stimuli of subthreshold intensity are applied in succession is called

Adaptation

Accomodation

Initiation

Resistance

Question Category:

Physiology

Correct Answer:

Accomodation

Description:

Accommodation - Slow rising subthreshold stimulus failing to produce action potential even when the normal threshold levels are reached. This occurs because of inactivation of voltage-gated Na+ channels. Adaptation- Persistent application of suprathreshold stimulus fails to generate repetitive firing.

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