1. As you increase voltage to the muscle describe how it responds to the increased stimulus 2. What was the smallest voltage required to produce a contraction (the threshold voltage)? Whatproportion of the fibers in the muscle do you think were contracting to produce this small response?
3. What was the smallest voltage required to produce the maximum (largest0 contraction? Whatproportion of the fibers in the muscle do you think were contracting to produce this maximalresponse?
4. What do you conclude happened to the number of fibers contracting as the voltage was raisedfrom the threshold to that required to produce a maximal contraction?
5. In light of the all or none law of muscle contraction, how can you explain the graded response?