Locomotion-And-Movement Question 87
Question: A stronger muscle contraction occurs when the brain _______.
Options:
A) Send signals to larger number of motor units to contract.
B) Activates muscle cells more quickly.
C) Activates the motor units of the muscle one at a time.
D) Sends nerve impulses to the muscle one at a time instead of in bursts.
Show Answer
Answer:
Correct Answer: A
Solution:
[a] The strength of a contraction for a given muscle is proportional to the number of motor units activated.
BETA
