Sherrington's law of reciprocal innervation

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Sherrington's law of reciprocal innervation, also called Sherrington's law II explains how a muscle will relax when its opposite muscle (e.g., biceps/triceps) is activated. René Descartes had hypothesized as much in 1626.[citation needed]

Sherrington's law of reciprocal innervation states that: When a muscle contracts, its direct antagonist relaxes to an equal extent allowing smooth movement.

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