Question

what is meant by threshold stimulus in muscle contraction ?​

Answer 1

a muscle twitch is a single contraction resulting from a threshold stimulus, where a threshold stimulus is the smallest stimulus strength that actually results in a contraction. The latent period is the delay between the stimulation and the physical contraction...

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Answer 2

Muscle Stimulus and Contraction Strength. A skeletal muscle fiber will produce a given amount of force if the stimulus is strong enough to reach the threshold for muscle contraction. This is called the all or none law. ... In skeletal muscles a motor neuron can innervate many muscle fibers

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