HII JOINTS VND I [G I HI i PP 





over tfa ,ular notch and 



apula. 

 arten ol the s< apula supi i ilararti 

 I riortrai 'anient I 



«J tli which! 



where the su] nd infra 



small branches of the bloc 

 ments which take the pi 



THE SHOULDER -JOINT. 



The shoulder-joint i is the arti 



nd the head <>i the humerus. The r ,l ati , 



iderably enlarged and deepened t» a marl 

 glenoidal lip imen t) I ,hieh surrounds tl, 



J ns P* " •'-• ^wever, thi I of the shoulder-joint is still 



head ol the humerus, and [uenth 



bone. 



The articular capsule i ^ and ,,; 



the n a freely movable enarthrosis. It an ,m the ma 



is inserted into the anatomical neck of the humerus, and altho 



nsiderable strength from its adherence to th, 

 spinatus, infraspinatus, teres minor, 

 humeral hgamenl I . IQS and 197). This ligame, 

 7 the and 1 ndently at first and then i, 



the upper and posterior portion of tl sular ligament, to th 



in the neighborhood of the two tuberosities. \ somewhat 

 inner portion <>i the capsule. 



A p^uliaritv of the shoulder-joint is that it contain 

 of the long head of the bio phis ten 



tubercle and is adherent to the upper portion of the g I< 



eneath the coracohumeral ligament and 

 accompanied! ertain disl 



membrane, the hercuhr m 



tubercular groove is lined with cartilage. At the termh 

 membrane is closely adherent to the tendon, and 

 scapularu > muscle in the shape of a bursa which communi 



">- lhl - «* 1 has a very thin wall and is 



surface of the coracoid pro 



ol the internal portion of th( l e . 



The shoulder-joint is tl 



