The radius and the ulna are bones in the forearm. Fractures, or breaks, of the radius and ulna are among the most common bone injuries. People may sometimes fall on their arms or use them to brace ...

You have two main bones in your forearm, called the ulna and radius. The ulna runs along the outside of your wrist, while the radius runs along the inside of your wrist. There’s a bony projection at ...

The ulna is one of two long bones in the lower arm or forearm. The other bone is the radius, which is a little bit smaller and shorter than the ulna. Generally, muscles are composed of tissues that ...