2.03 (1) - Steps of Sliding Filament Theory Before step 1...

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Steps of Sliding Filament Theory Before step 1- Stimulation of the somatic nerve stimulates skeletal muscle fibers at the neuromuscular junction, releasing Acetylcholine. Travels through muscle by the transverse tubules, releasing calcium from sarcoplasmic reticulum. The Ca+ binds to troponin. Step 1- Myosin heads split ATP and become ADP releasing energy for Myosin to attach to the Actin. Step 2- Myosin heads bind to actin filament and form crossbridges. Step 3- Myosin heads rotate towards center of sarcomere, shortening muscle, and occurring along entire
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  • Summer '15
  • Sliding Filament Theory, sarcoplasmic

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