What protects the muscle from overcontraction or overstretch? What "monitors" length of a muscle?
What will be an ideal response?
ANS: Overcontraction and overstretch are prevented by the "abort" receptors, the Golgi tendon organs
(GTOs). It is generally believed that these will not fire unless there is a reasonable threat to the
muscle. The active and passive lengths of a muscle are monitored by the muscle spindle. It is the
spindle that is responsible for a muscle's tone, or resistance to passive stretch.
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A) PTSD. B) suicide. C) chronic anxiety. D) all of the above.