Explain the working of muscles.
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Muscles are attached to bones by tendons and help them to move. When a muscle contracts (bunches up), it gets shorter and so pulls on the bone it is attached to. When a muscle relaxes, it goes back to its normal size.
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muscles help in movement.it provide tug on the bones.it wworks in pairs of flexors and extensors.extensor muscles relax & streches & flexor contracts to bend the joint.
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