Interosseous membrane of forearm
Lua error in package.lua at line 80: module 'strict' not found. Lua error in Module:Infobox at line 235: malformed pattern (missing ']'). 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.
Function
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. As the forearm moves from pronation to supination, the interosseous membrane fibres change from a relaxed state, to a tense state in the neutral position. They once again become relaxed as the forearm enters supination.
The interosseous membrane is composed of 5 ligaments:
- - Central band (key portion to be reconstructed in case of injury)
- - Accessory band
- - Distal oblique bundle
- - Proximal oblique cord
- - Dorsal oblique accessory cord
See also
- Anterior interosseous nerve
- Anterior interosseous artery
- Posterior interosseous nerve
- Posterior interosseous artery
- Common interosseous artery
- Recurrent interosseous artery
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