They are: Biceps brachii ... Brachialis: The brachialis is found underneath your biceps and is involved with the flexing of your forearm. Coracobrachialis: Your coracobrachialis is located ...

Body Plan. To sculpt sleeve-busting muscle, you need to focus on the brachialis—the muscle that lies under the biceps brachii—too, he says. So what's the best way to do that? Just switch your ...

As Israetel explains, the brachialis—which is the primary target muscle being worked in hammer curls—does not contribute to supination like the biceps brachii do. "It does contribute to elbow ...