With an implanted electrode you are able to cause an individual motor neuron that connects to the bicep muscle to fire an action potential. Which of the following is the most likely result?
A. A single muscle cell within the bicep muscle contracts.
B. Between 10-1,000 muscle cells within the bicep muscle contract.
C. The entire bicep muscle contracts.
D. It is impossible to predict based on this information alone.
Answer: D
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