Drop in the force of contraction of muscles due to prolonged stimulation is called
A
Muscle tonicity
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B
Muscle atrophy
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C
Muscle fatigue
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D
Muscle dystrophy
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Solution
The correct option is C Muscle fatigue Prolonged stimulation of muscles/overwork lead to muscle fatigue leading to a decrease in the force of contraction. This may be due to depletion of calcium stores in the sarcoplasmic reticulum or also due to accumulation of lactic acid.