Which action follows Sherrington's law of reciprocal innervation when looking to the right?

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Sherrington's law of reciprocal innervation states that when one muscle contracts, its antagonist muscle relaxes. This principle is fundamental in the coordinated movements of muscles, especially in the context of eye movements.

When looking to the right, the right lateral rectus muscle, which is responsible for abducting the right eye, contracts to move the right eye outward. To maintain proper eye alignment and prevent conflicting movements, the right medial rectus muscle, which would normally adduct the right eye, is inhibited. This inhibition allows the right eye to move freely to the right without the opposing action of adduction.

Simultaneously, to maintain binocular vision and coordination, the left medial rectus muscle contracts to adduct the left eye, ensuring that it moves in accordance with the right eye during lateral gaze. This results in a situation where the contraction of the right lateral rectus is accompanied by the inhibition of the right medial rectus, effectively demonstrating Sherrington's law.

Thus, the correct action in this scenario reflects the principles of reciprocal innervation and coordinated eye movement when looking to the right.

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