What is the inner and larger bone of the forearm called?

The inner and larger bone of the forearm is known as the ulna. It runs parallel to the smaller bone of the forearm, the radius. The ulna is primarily located on the side of the forearm that corresponds to the little finger and plays a crucial role in forming the elbow joint with the humerus. In addition to its structural support, the ulna provides attachment points for muscles that enable movement of the arm and wrist. Its unique shape and configuration also facilitate various movements at the elbow, contributing to the overall functionality of the forearm. This anatomical significance is why the ulna is recognized as the inner and larger bone of the forearm, which is critical for students to understand when studying human anatomy.