Describe the Relationship Between the Number of Fibers in a Motor

Multiple Choice

Describe the relationship between the number of fibers in a motor unit and the precision of body movements.

A) The finer and more precise the movement,the thinner the muscle fibers in the motor unit.
B) The finer and more precise the movement,the greater the number of motor neurons in the motor unit.
C) The finer and more precise the movement,the fewer the number of muscle fibers in the motor unit.
D) The finer and more precise the movement,the greater the number of muscle fibers in the motor unit.
E) The finer and more precise the movement,the thicker the muscle fibers in the motor unit.