What Muscle Flexes the Elbow?

Brachialis: upper arm muscle beneath the biceps which flexes the elbow towards the body. Brachioradialis: forearm muscle that flexes, straightens and pulls the arm at the elbow.

What muscle causes flexion at the elbow?

The biceps flexes the elbow. It does this more efficiently when the forearm is pronated , because then it's fully stretched when it starts its action. The biceps can also be a powerful supinator of the forearm, as we'll see later. The last of the three elbow flexors is brachioradialis.

How many muscles flex the elbow?

There are three muscles involved in flexing your elbow. They connect your upper arm to your forearm. When they contract, they become shorter and pull your forearm toward your upper arm.