Interosseous membrane of forearm
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|Interosseous membrane of forearm|
The Supinator. (Interosseous membrane labeled at center.)
|Latin||membrana interossea antebrachii|
The interosseous membrane of the forearm (rarely middle or intermediate radioulnar joint) is a fibrous sheet that connects the radius and the ulna. It is the main part of the radio-ulnar syndesmosis, a fibrous joint between the two bones.
The Role of the Interosseous Membrane:
The interosseus membrane divides the forearm into anterior and posterior compartments, serves as a site of attachment for muscles of the forearm, and transfers forces from the radius, to the ulna, to the humerus.
Movement from supination to pronation
As the forearm moves from Pronation to Supination the Interosseous membrane fibres change from a relaxed state, then become tense in the neutral position and then once again become relaxed as the forearm enters Supination.
- Anterior interosseous nerve
- Anterior interosseous artery
- Posterior interosseous nerve
- Posterior interosseous artery
- Common interosseous artery
- Recurrent interosseous artery
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