Interosseous border of the radius

Definition

The interosseous border of the radius is the lateral edge of the radius bone in the forearm that faces towards the ulna, providing an attachment site for the interosseous membrane that connects the radius and ulna bones. This feature is crucial for forearm stability and movement, facilitating actions such as pronation and supination.

Related terms

Radius: The lateral bone in the forearm when in anatomical position, extending from elbow to wrist.

Ulna: The medial bone of the forearm in anatomical position, larger at its upper end than its lower end, playing a key role in forming the elbow joint with the humerus.

Interosseous Membrane: A fibrous sheet connecting the interosseous borders of the ulna and radius, adding to forearm stability by distributing forces across both bones