Multiple Choice
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 responses.
C) Firing rates increase, leading to uncomfortable cramping.
D) Firing rates decrease, but muscle fibers are able to compensate for these changes.
Correct Answer:

Verified
Correct Answer:
Verified
Q38: Alpha motor neurons form connections with muscle
Q39: Exposure to environmental toxins may lead to<br>A)
Q40: A single motor unit usually contains a
Q41: Genetics may predispose people to develop _
Q42: Cases of polio may be found in<br>A)
Q44: The basal ganglia inhibit the activity of
Q45: Kadeshia has been studying for a
Q46: Observations of the muscle fibers of people
Q47: Nasir is looking at a picture of
Q48: How does recruitment work and why does