Atrophy at the neuromuscular junction that naturally occurs with age would have what effect on muscles?
A. It would decrease the number of action potentials sent to the muscle fiber.
B. It would stimulate muscle cramps.
C. It would stimulate the nervous system to increase the speed in which it sends action potentials to the muscle fiber.
D. It would cause an increase in the amount of ACh released by the neurons to compensate.
E. It would have no effect on the muscles.
Answer: A
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