- Interosseous membrane of forearm
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 Pronation to Supination:
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
Joints and ligaments of upper limbs (TA A03.5, GA 3.313) Shoulder ElbowRadial collateralUlnar collateralAnular · Oblique cord ForearmPalmar radioulnar · Dorsal radioulnar · Interosseous membrane of forearm Joints of handDorsal radiocarpal/Palmar radiocarpal · Dorsal ulnocarpal/Palmar ulnocarpal · Ulnar collateral/Radial collateralRadiate carpal · Dorsal intercarpal · Palmar intercarpal · Interosseous intercarpal · Scapholunate · Pisiform joint (Pisohamate, Pisometacarpal)Dorsal carpometacarpal · Palmar carpometacarpal · thumb: Radial collateral, Ulnar collateralCollateral · PalmarCollateral · PalmarOther
anat(h/c, u, t, l)/phys
noco(arth/defr/back/soft)/cong, sysi/epon, injr
proc, drug(M01C, M4)Categories:
- Upper limb anatomy
- Musculoskeletal system stubs
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