Interosseous membrane of forearm
Joints and ligaments · Latin: Membrana interossea antebrachii
The interosseous membrane of the forearm (rarely middle or intermediate radioulnar joint) is a fibrous sheet that connects the interosseous margins of the radius and the ulna.
It is the main part of the radio-ulnar syndesmosis, a fibrous joint between the two bones.
Definition from Wikipedia, CC BY-SA 4.0.