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  4. If a stimulus, several times greater than the threshold stimulus is provided to a muscle fibre, it will

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Q. If a stimulus, several times greater than the threshold stimulus is provided to a muscle fibre, it will

AIIMSAIIMS 2001

Solution:

A muscle fibre would contract only when it receives stimulation of certain intensity called threshold stimulus. Response of a muscle fibre to a stimulus is not proportional to its intensity. It is absent when the intensity is subliminal. Muscle fibre contracts to the maximum whether the stimulus has threshold value or supraliminal value.