What happens to the rate of firing in motor neurons as we age?
A) No changes occur.
B) Firing rates decrease,leading to slower and weaker muscle contractions.
C) Firing rates increase,leading to uncomfortable cramping.
D) Firing rates decrease,but muscle fibers are able to compensate for these changes.

Question

Quizplus · Accepted Answer

As we age, the rate of firing in motor neurons decreases, leading to slower and weaker muscle contractions. This can result in a decrease in muscle strength and coordination, as well as an increased risk for falls and injuries.

What Happens to the Rate of Firing in Motor Neurons