McCarthy P H, Wood A K
Department of Veterinary Anatomy, University of Sydney, NSW, Australia.
Am J Vet Res. 1988 Jun;49(6):956-9.
In an anatomic and radiologic study of the clavicle of 50 adult dogs of 10 breeds, the clavicle had ossified in 96% of the dogs. The clavicles studied had various shapes, and each clavicle was attached to the caudomedial part of the clavicular intersection of the brachiocephalic muscle, to the mastoid part of the cleidocephalic muscle, and to 4 radiating bands of connective tissue fasciculi. One band was attached to the caudal border of the scapula and fascia deep to the latissimus dorsi muscle, 1 was attached to the manubrium of the sternum, and 1 each was attached to the epimysia of the superficial pectoral and sternocephalic muscles. We concluded that, during movements of the thoracic limb, the clavicle and the 4 fasciculated connective tissue bands associated with it stabilize the position of the brachiocephalic muscle with relation to the crest of the greater tubercle of the humerus. Also, the fasciculated band attached to the caudal border of the scapula provides protection for nerves from the brachial plexus and axillary blood vessels that supply the thoracic limb.
在一项对10个品种的50只成年犬锁骨进行的解剖学和放射学研究中，96%的犬锁骨已经骨化。所研究的锁骨形状各异，每根锁骨都附着于臂头肌锁骨交叉的后内侧部分、锁头肌的乳突部分以及4条结缔组织束带。其中一条束带附着于肩胛后缘和背阔肌深面的筋膜，一条附着于胸骨柄，另外两条分别附着于胸浅肌和胸头肌的肌外膜。我们得出结论，在胸肢运动过程中，锁骨及其相关的4条束状结缔组织带可稳定臂头肌相对于肱骨头大结节嵴的位置。此外，附着于肩胛后缘的束状带可为来自臂丛神经和供应胸肢的腋血管的神经提供保护。
