Muscle tone
Defined as tension in muscle at rest.
Partial state of contraction of muscle in resting condition.
Muscle tone is continuous and passive partial contraction of muscle.
Voluntary muscle nerve fully relaxed, always slightly tension. Muscle tone makes it possible for muscles to go quickly into action.
Involuntary nerve impulse maintain muscle partially contracted state, if sudden pull or stretch occurs, body responds by automatically increasing muscle tension, reflex which helps guard to maintain balance.
It helps to maintain posture.
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