of a skeletal muscle fiber following is the correct sequence that describes the excitation and...
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of a skeletal muscle fiber following is the correct sequence that describes the excitation and Contraction 1 Tropomyosin shifts and unblocks the cross bridge binding sites 2 Calcium is released and binds to the troponin complex 3 Transverse tubules depolarize the sarcoplasmic reticulum 4 The thin filaments are ratcheted across the thick filaments by the heads of the myosin molecules using energy from ATP 5 An action potential in a motor neuron causes the axon to release acetylcholin which depolarizes the muscle cell membrane 05 3 1 2 4 01 2 3 4 5 05 3 2 1 4 02 3 4 1 5 1 3 5 4
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