160 



PRACTICAL ANATOMY. 



COSTOCLAVICULAR, 01 RHOMBOID. 



Origin Upper inner part of first costal cartilage. 

 Insertion Rhomboid depression on inferior surface 



of clavicle. 



FIBRO-CARTILAGE : Flat disk interposed between the 

 bones ; attached to costo-sternal articulation of 

 first cartilage; inserted into the upper anterior 

 part of the sternal end 

 of the clavicle. 



ACROMIO-CLAVICULAR ARTICULA- 

 TIONS. 



LIGAMENTS : 

 SUPERIOR. 



Origin Superior surface 



of acromion. 



Insertion Superior surface 

 of adjoining end of 

 clavicle. 

 INFERIOR. 



Origin Inferior surface of 



acromion. 



Insertion Inferior surface 

 of adjoining end of clavicle. 



CORACO-CLAVICULAR, or CONOID. 



Origin Conoid tubercle. 

 Insertion Base of coracoid process. 

 CORACO-CLAVICULAR, or TRAPEZOID. 

 Origin Oblique line of clavicle. 

 Insertion Base of coracoid process. 



SCAPULAR LIGAMENTS. 

 LIGAMENTS : 

 CORACO-ACROMIAL. 



Origin Posterior border of coracoid process. 

 Insertion Apex of acromion. 



FIG. 73. LIGAMENTS ABOUT 

 THE SHOULDER-JOINT. 



1, superior acromio-clavicular liga- 

 ments ; 2, coraco-clavicular ligaments ; 3, 

 coraco-acromial ligaments; 4, transverse 

 ligament : 5, capsular ligament ; 6, coraco- 

 humeral ligament ; 7, tendon of biceps. 



