LATERAL INTERMUSCULAR SEPTUM OF ARM

 

 

PROXIMAL ATTACHMENT: Lower part of lateral lip of intertubercular sulcus.

 

DISTAL ATTACHMENT: Lateral epicondyle of humerus and blends with tendons of deltoid. It provides attachment for brachioradialis, brachialis, triceps brachii and extensor carpi radialis longus.

 

FUNCTION: Perforated by radial nerve and radial collateral artery. It divides the anterior and posterior compartments of arm together with lateral intermuscular septum.

 

JOINT:  Nil

 

 

 

 

 

 

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Layers 1- skin; 2- fasciae, 3- superficial muscle, 4 -deep muscles 5- deepest layer, 6-j oints, 7- bones  
Layers 1- skin; 2- fasciae, 3- superficial muscle, 4 -deep muscles 5- deepest layer, 6-j oints, 7- bones

 

 

 

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