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22 February, 17:25

Why are many muscles at the effector end of the reflex arc found in antagonistic pairs?

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  1. 22 February, 17:36
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    Agonist and Antagonist muscles frequently happen in pairs, named antagonistic pairs. As one muscle pacts, the other eases. An illustration of an antagonistic pair is the triceps and biceps; to contract - the biceps contracts to boost the arm while the triceps relaxes. Therefore, antagonistic muscles have contrary actions. This is frequently needed for a reflex.
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