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What Are the Muscles of Your Arms? There are four main muscles of your arms: biceps, triceps, forearm flexors, and forearm extensors. There are also a handful of other muscles that support these main four.
What Are the Muscles of Your Arms? There are four main muscles of your arms: biceps, triceps, forearm flexors, and forearm extensors. There are also a handful of other muscles that support these main four.