A ratchet-like rhythmic contraction, especially in the hand, during passive stretching is known as?

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Quizplus · Accepted Answer

The ratchet-like rhythmic contraction, especially in the hand, during passive stretching is known as cogwheeling. It is a characteristic feature of Parkinson's disease and is thought to be caused by a combination of muscle rigidity and tremors. Spinothalamic dysfunction refers to a condition where there is damage to the spinothalamic tract, resulting in sensory deficits. Ratcheting is not a medical term and is not related to this condition. Hand tremors are a common feature of several neurological conditions, but they are not specifically associated with cogwheeling.

A Ratchet-Like Rhythmic Contraction, Especially in the Hand, During Passive