
elbow flexion
Elbow flexion is the movement that decreases the angle between your forearm and upper arm, bringing your hand closer to your shoulder. This action primarily involves the biceps brachii muscle, along with accessory muscles like the brachialis and brachioradialis. When you bend your elbow to lift a cup or hug someone, your muscles contract, shortening to create this motion. It’s a fundamental movement used in many daily activities, enabling you to manipulate objects and perform tasks that involve bringing your hand toward your body.