You have precise control over the movement of your fingers, probably because:
A) they have many muscle fibers per motor neuron.
B) they have few muscle fibers per motor neuron.
C) the axons in the fingers have faster action potentials.
D) you have learned how to write.

Question

Quizplus · Accepted Answer

Fingers have few muscle fibers per motor neuron, which allows for more precise and fine motor control. This is in contrast to larger muscles that have many muscle fibers per motor neuron and allow for more gross motor movements.

You Have Precise Control Over the Movement of Your Fingers