flexion

Which Muscles Produce Flexion? Flexion: Produced by the biceps femoris What muscles perform flexion? Flexion: decreasing the angle between two bones (bending). Extension: increasing the angle between two bones (straightening a bend). The triceps brachii and anconeus are muscles that extend the elbow. The biceps brachii, brachialis, and brachioradialis flex the elbow. What is the