Muscle tone is the condition in which
A) different muscles are taking responsibility for maintaining posture.
B) the muscle has generated maximum tension.
C) the muscle will eventually exhaust its supply of ATP.
D) a small but changing number of motor units are active in a muscle.
E) the maximum number of action potentials is being received by the muscle.

Question

Quizplus · Accepted Answer

Muscle tone refers to the continuous partial contraction of a small number of motor units in a muscle, even when the muscle is at rest. This ensures that the muscle is always partially activated and ready to respond to additional stimulation. The number of motor units involved in muscle tone can vary, which allows for adjustments in posture and balance.

Muscle Tone Is the Condition in Which