EXPLAIN WHY THIGH MUSCLES GET TIRED SOON BUT NOT THE MUSCLES OF HEART?
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thigh muscle. are skeletal muscles which undergo fatigue quickly but heart muscle does not because it has high supply of oxygen
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Cardiac muscle fibres continue
to contract and relax tirelessly throughout life . The movement is not under the control of will. Fatigue is absent as the fibres do not produce lactic acid. While the thigh muscles are striated and produce fatigue through lactic acid .
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