528 



MAMMALIAN ANATOMY 



superior border, aucl behind by the ax'illary 1 border. It is divided 

 into nearly equal anterior and posterior parts by a high, thin plate, 

 which stands out at right angles to the surface and runs almost in 



FIG. 418. 



Vertebral Border. 



m 



RHOMBOIDEUS CAPITIS 



Triangular Surface, 

 over which passes 



TRAPEZIUS 



-<\\ Wi^v % 

 \\ "VvX s 



m 



/ ,- 'I \ \ M 



Spinous Head of 



DELTOID. 

 LEVATOR CLAVICUL>6 



on 

 Metacromion. 



BICEPS. 



CORACO- 

 BRACHIALIS 



on 

 Coracoid Process. 



-Head. 



-Glenoid Cavity, with Humerus. 



LEFT SCAPULA, OUTER ASPECT. 



the middle line from the vertebral border to the neck. It is known 

 as the spine of the scapula, and it separates the supraspinous fossa 

 in front and above from the infraspinous fossa below and behind. 



The supraspinous fossa is bounded in front by the arcuate anterior 

 superior border, above by part of the arcuate vertebral border, and 

 behind by the straight line of attachment of the spine. It is flat from 



1 From axilla, the armpit. 



