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muscle relaxes the elbow joint. (Extensors/Depressors)

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A muscle gets fatigued by an accumulation of _____. (carboxylic acid/lactic acid)

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Myoglobin is found in _____. (smooth muscle/skeletal muscle)

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The knee joint is a _____ type of joint. (Fibrous/Synovial)

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Contraction of _____ muscle helps in lifting heavyweight. (triceps/biceps)

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The shoulder joint is classified as a _____ joint. (synovial/fibrous)