BONES OF SHOULDER GIRDLE 7 



superior. Between the upper and second fourth of the vertebral 

 border on the posterior surface there starts a process, which 

 passes right across the dorsum of the bone, and ends in the 

 acromion process. From the external end of the superior border 

 projects a beak-like process called the coracoid. Immediately 

 to the inner side of the root of the coracoid process is the 

 suprascapular notch. 



Posterior Belly of Omo-hyoid. 

 Supraspinous Fossa and Supraspinatus \ 



Superior Angle ' 



Levator Anguli bcapule 

 I 



Spine 



For Tendon 



of Trapezins 



Rhomboideus Minor 



Rhomboideus Major 

 Infraspinous Fossa 

 and Infraspinatus 



Groove for Dorsalis 

 Scapulae Artery 



Suprascapu 

 ' Notch 



lar Coracoid 



Process Trapezius 



Great 

 ^capular Notch 

 Glenoid Cavity 



Infraglenoid Ridgs 



and L< ng Head 



of Triceps 



>*. Axillary Border 

 N Teres Minor 



*-. Teres Major 



""-. Inferior Angle 



Latissimus Dorsi 



FIG. 2. THE RIGHT SCAPULA (POSTERIOR VIEW). 



The superior angle (vertebral end of superior border) is more 

 or less rectangular, and the inferior angle very acute. At the 

 junction of the outer end of the superior border and the upper 

 end of the axillary border is the glenoid cavity, a pyriform, 

 slightly concave area, which receives the head of the humerus, 

 thus forming the shoulder- joint. The coracoid process arises 

 just internal to the glenoid cavity, and, bending on itself forwards 



