1. Each time myosin heads pull on actin, the sarcomere contracts only about 10 nm ( meter). Given that, how are you able to produce large motions with your muscles? 2. Explain what happens when you...

1. Each time myosin heads pull on actin, the sarcomere contracts only about 10 nm (
meter). Given that, how are you able to produce large motions with your muscles?

2. Explain what happens when you wiggle your toe. Start with the decision to wiggle your toe, which occurs in your brain, and end with a description of the activity of your muscles and bones.