Which of the following best describes the antagonist muscle during a biceps curl (elbow flexion)?

Which of the following best describes the

Multiple choice — select the best answer

ABrachioradialis
BTriceps brachii
CBrachialis
DPronator teres

✓ Correct answer: B. Triceps brachii The antagonist is the muscle that opposes the prime mover's action; during elbow flexion the biceps brachii is the agonist, and the triceps brachii — the primary elbow extensor — is the antagonist, eccentrically lengthening to allow controlled movement.

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Which of the following best describes the antagonist muscle during a biceps curl (elbow flexion)?

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