An antagonist muscle is one that must relax and lengthen to allow the agonist muscle to contract.
Question
An antagonist muscle is one that must relax and lengthen to allow the agonist muscle to contract.
Solution
Yes, that's correct. An antagonist muscle is indeed one that relaxes and lengthens to allow the agonist muscle to contract. This is part of the process known as reciprocal inhibition. When the agonist muscle (the muscle that creates the movement) contracts, the antagonist muscle does the opposite - it relaxes. This allows the agonist muscle to work more efficiently, without being opposed by the antagonist muscle. This is a fundamental principle in how our muscles work together to create movement.
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