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==Common structures of the Proximal Forelimb and Shoulder==
 
==Common structures of the Proximal Forelimb and Shoulder==
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'''''Scapula'''''
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===Scapula===
    
The Scapula forms the basis of the shoulder region, providing points of attachment of extrinsic and intrinsic muscles.  It is held in place by a synsarcosis of muscles and does not form a conventional articulation with the trunk.
 
The Scapula forms the basis of the shoulder region, providing points of attachment of extrinsic and intrinsic muscles.  It is held in place by a synsarcosis of muscles and does not form a conventional articulation with the trunk.
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*The Scapula articulates with the humerus at the '''Glenoid cavity'''
 
*The Scapula articulates with the humerus at the '''Glenoid cavity'''
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'''''Clavicle'''''
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===Clavicle===
    
The Clavicle is all but absent in most domestic species, with the notable exception of the avian skeleton.  In the dog and cat, a remnant of bone may remain embedded in the fibrous intersection in the brachiocephalicus, which may prove misleading in radiographic images.
 
The Clavicle is all but absent in most domestic species, with the notable exception of the avian skeleton.  In the dog and cat, a remnant of bone may remain embedded in the fibrous intersection in the brachiocephalicus, which may prove misleading in radiographic images.
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'''''Humerus'''''
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===Humerus===
    
The Humerus is the long bone of the forearm, articulating with the scapula to form the shoulder and the radius and ulna to form the elbow.  In situ, it lies obliquely along the ventral thorax and is more horizontal in larger species.   
 
The Humerus is the long bone of the forearm, articulating with the scapula to form the shoulder and the radius and ulna to form the elbow.  In situ, it lies obliquely along the ventral thorax and is more horizontal in larger species.   
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