Relier Pairs Skeletal Muscle ContractionVersion en ligne Match the various steps of a skeletal muscle contraction with the descriptions of that action. par Lindsay Spielman 1 Toponin 2 Directly causes cross bridge formation 3 Acetylcholinesterase 4 Acetylcholine 5 Muscle relaxation 6 Calcium release by the SR 7 End Plate Potential 8 Directly causes cross-bridge detachment 9 Tropomyosin Regulatory protein that covers the myosin-binding sites of the actin. Local sarcolemma depolarization of the neuromuscular junction. Calcium is actively pumped back into the SR. Calcium binds to this regulatory protein on the thin filaments. Hydrolysis of ATP to ADP and Pi by the ATPase of the myosin head. Neurotransmitter released by somatic neurons at the neuromuscular junction. ATP attaches to the myosin head. Degrades acetylcholine in the synapse. Triggered by depolarization of the t-tubules.
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