THE SCAPULA 



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 14 15 



Fig. 60. — Left Scapula of Horse; Latee.\.l Surface, 

 1, Spine; 2, tuber spinas; 3, cartilage; 4, anterior 

 angle; 5, posterior angle; 6, supraspinous fossa; 7, in- 

 fraspinous fossa; 8, anterior border; 9, posterior bor- 

 der; 10, muscular lines; 11, nutrient foramen; 12, 

 vascular groove; 13, neck; 14, tuber scapulee; 15, glen- 

 oid cavity. * 



Fig. 61. — Right Scapula of Hohse: Costal Surface. 

 1, Anterior angle; 2, posterior angle; 3, anterior border; 

 4, posterior border; .5, neck; 6, vascular groove; 7, glenoid 

 cavity; 8, coracoid process; 9, tuber acapulc^. 



anterior and vertebral borders and lies opposite to the second thoracic spine, 

 relatively thin and is about a right angle. 



The posterior or dorsal angle (Angulus caudalis) is thick and rough 

 opposite to the vertebral end of the seventh rib, and 

 its position can be determined readily in the living 

 animal. 



The glenoid or articular angle (Angulus glenoid- 

 alis) is joined to the body of the bone by the neck 

 of the scapula (Collum scapulse). It is enlarged, 

 especially in the sagittal direction. It bears the 

 glenoid cavity (Cavitas glenoidalis) for articulation 

 with the head of the humerus. The cavity is oval 

 in outline, and its margin is cut into in front by the 

 glenoid notch (Incisura glenoidalis), and is rounded 

 off laterally; just above its postero-lateral part is a 

 tubercle to which a tendon of the teres minor is at- 

 tached. The tuber scapulae^ is the large rough 

 prominence in front, to which the tendon of origin 



Fig. 62, — Distal Extremity 



' Formerly termed the bicipital tuberosity. Scapula of Horse; End 



Tuber 

 scapulcE 

 Coracoid 

 process 



Glenoid 

 notch 



Glenoid 

 cavity 



It is 

 it is 



OF Left 

 View. 



