THE AXILLARY ARTERY 



433 



Fig. 355. THE CAROTID, SUBCLAVIAN, AND AXILLARY ARTERIES. (Tiedemann.) 



The great pectoral, sterno-raastoid, sterno-hyoid and sterno-thyroid muscles have been removed ; the 

 front part of the deltoid has been divided near the clavicle. Subclavian artery and its branches. 1, 

 first part of subclaviun artery giving rise to the thyroid axis and internal mammary, and also to +, the 

 vertebral artery ; 2, third part of subclavian artery ; 3, first part of axillary artery ; 4, third part of 

 axillary artery ; 5, commencement of brachial artery ; 6, superficial cervical artery giving off in this 

 instance 6', the ascending cervical branch ; 7, posterior scapular artery, arising from the subclavian 

 behind the scalenus anticus ; 8, acromial branch of acromio-thoracic ; 9, superior thoracic, in this case 

 of large size; 10, long thoracic artery below the pectoralis minor muscle; +, posterior circumflex 

 branch of the axillary artery (the anterior circumflex is seen arising from the opposite side of the same 

 part of the axillary trunk) ; 11, dorsal scapular artery, passing backwards between the subscapularis and 

 teres major muscles ; 12, continuation of the subscapular artery. For explanation of references 13 to 

 27, see p. 400. 



