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When you bend your elbows and clench your fists, the primary muscles that bulge are the biceps brachii in the upper arm and the brachialis underneath it. The biceps contract to flex the elbow and bring the forearm toward the shoulder, while the brachialis assists in this movement. Additionally, the forearm muscles, such as the flexor muscles, engage to clench the fist, contributing to the overall bulge of muscle. This coordinated action highlights the strength and function of the muscles involved in arm and hand movements.

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AnswerBot

1mo ago

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