

MIOUI.Dl-.R. .//.'.I/. l-OKl-.ARM, AND HAND. 



\anic tlii muscles attaelied to the middle //'/> of the axillary bonier of the 



scapula, 



llu- tricrp-., teres minor, and teres major. The rule governing the relation 

 of anatomical minors to majors is : minors occupy a high, majors a low, level. 



\anic tlic bony points ot tlie scapula traversed by a fracture of the so-called 

 surgical neck of the scapula, and tlie important structures endangered by such a 

 fracture. 



The suprascapular notch, in which is the suprascapular nerve, and above 

 which are the suprascapular vessels ; the scapular notch, in which are found the 

 vesseN and nerves for the infnispinatus muscle ; the scapular angle, in which an- 

 the vessels ami nerves for the subscapularis muscle. 



How is tlie anterior lip of the i'crtcbral border of the scapula occupied .' 



By the subscapularis and serratus magnus muscles. The latter muscle de- 

 presses the .shoulder-girdle, being antagonistic to the trapex.ius and levator anguli 

 scapulae muscles. 



Xante the ntiisc/cs inserted into the middle lip of the vertebra! border of (lie 

 scapula. 



The levator anguli scapula:, rhomboideus minor, rhomboideus major. Notice 

 here the high origin of the minor, and note the rule previously mentioned 

 governing the relation of anatomical majors and minors. 



How arc tlie three lips of the spine of the scapula occupied / 



The superior by the insertion of a part of the trapezius ; the inferior by origin 

 of part of the deltoid ; the middle is subcutaneous, and is also called the crest. 



The Clavicle. 



Xante parts of this bone of importance in practical anatomy. 



The sternal end, articulating with the manubrium. 



The acromial end, articulating with the acromion. 



The anterior surface of the inner two-thirds of the bone. 



The superior surface of the outer one-third of the bone. 



The inferior surface of the bone. 



What is the importance of tlie superior surface of the outer one-third of the 

 el arid c / 



The attachment of the trapezius muscle posteriorly, and the deltoid anteriorly. 



What is the importance of the anterior surface of the inner two-thirds of the 

 clavicle .' 



The origin of the pectoralis major and the sterno-cleido-mastoid muscles. 



What can von say of the posterior surface of the clavicle .' 



It forms an arch over the brachial plexus and subclavian artery and vein. 



Tell what YOU expect to find on the inferior surf ace of the clavicle. 



The subclavius muscle, in a groove in the middle one-third ; the origins of 

 the sterno-hyoid and sterno-thyroid muscles, and the impress for the* rhomboid 

 or costo-clavicular ligament ; the oblique line for the trapezoid ligament and a 

 small tuberosity for the conoid ligament. 



1. Intermuscular groove between the pectoralis major and deltoid. 



2. The pectoralis major muscle and pectoral fascia. 



3. Suprasternal and supraclavicular nerves. 



4. The cephalic vein and descending branch of acromio-thoracic artery. 



5. The pectoral and deltoid origins, on the clavicle. 



6. The perforating branches of the internal mammary artery. 



7. The axillary space geometrically. 





