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Question
The longest phase in a single muscle twitch in a vertebrate is about 50 millisec and is ................. phase.
The longest phase in a single muscle twitch in a vertebrate is about 50 millisec and is ................. phase.
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Solution
The correct option is C Relaxation
Muscle twitch is the response of a muscle to a single electrical stimulation. It is divided into three phases: latent period - time between stimulation and beginning of shortening, contraction phase - time of shortening, relaxation phase- time when muscle is returning to resting length (longest phase).
Muscle twitch is the response of a muscle to a single electrical stimulation. It is divided into three phases: latent period - time between stimulation and beginning of shortening, contraction phase - time of shortening, relaxation phase- time when muscle is returning to resting length (longest phase).
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