BIOMORPHOLOGY OF GRUIFORMES SHOULDER JOINT SKELETON
Abstract
The skeletal structures of the shoulder joint of birds include scapula, which has a saber form, coracoid, clavicle and humerus. Gruiformes are characterized by elongation of scapula, acromion is directed upwards. Clavicles form a fork that in the proximal part has expanded ends. Coracoid is column shaped, extended at the base. In the medial edge of coracoid in the region of its proximal part the lateral process of coracoid is placed. It should be noted that in Eurasian coot and sarus crane in the distal part of lateral surface of coracoid a distal process of coracoid is located, also another one difference of coracoid bone is that it is fused with a sternum in sarus crane. The proximal end of coracoid in studied birds is tilted laterally.
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