In physiology, medicine, and anatomy, muscle tone (residual muscle tension or tonus) is the continuous and passive partial contraction of the muscles, or the muscle’s resistance to passive stretch during resting state. It helps maintain posture, and it declines during REM sleep.
Read more about Muscle Tone: Purpose, Pathological Tonus, Tonus in Surgery
Famous quotes containing the word tone:
“He doesn’t know a damn thing about China ... That’s what makes him an expert. He knows nothing about music, being tone deaf. That’s what makes him a musician ... And he’s batty in the head. That’s what makes him a philosopher.”
—William Carlos Williams (1883–1963)