i8 



THE UPPER EXTREMITY 



an anastomosis between the posterior division of the third lateral branch 

 and the intercostobrachial nerve. At the junction of the anterior and 

 medial walls of the axilla and at the lower border of the pectoralis minor 



Posterior circumflex artery 

 Subscapular artery < 

 Musculo-cutaneous nerve ! 



Axillary nerve (O.T. circumflex) 



Cephalic vein 

 Acrpmial artery 

 Lateral anterior thoracic nerve 

 Lateral cord of brachial plexus 



Thoraco-acromial artery 

 Axillary artery, ist pait 



Axillary vein 

 Subclavius muscle 



edial anterio 

 horacic nerv 



Anterior circumflex artery 

 Pectoralis major 



Coraco-brachialis 

 Biceps brachii 

 (short head) 



liasilic vein 

 Brachial artery 

 Median nerve 



Fascial band connecting 

 dorsi with long head of t 



Medial anti-brachial cutan 

 nerve 

 Ulnar nerve 



! Medial brachial cutaneous nerv 

 \ Teres major 

 Radial nerve (O.T. musculo- spiral 



Circumflex artery of scapula (O.T. 

 1 dorsalis scapulae) 

 Lower subscapular nerve 



Subscapularis muscle 



I Posterior division of lateral cuUneous nerve 

 ! Latissimus dcrsi 

 Thoraco-dorsal nerve (O.T. middle subscapular) 



interior branch of a 

 ral cutaneous nerve 



Lateral thoracic artery 

 (O.T. long thoracic) 



Long thoracic nerve 

 Intercosto-brachial nerve 



FIG. 8. The contents ot the Axillary Space exposed by the reflection of the 

 Pectoralis Major and the subjacent fascia on the removal of the fat and 

 glands. 



find the lateral thoracic artery ; clean the artery and the medial group of 

 axillary lymph glands which lie along its course. 



At the junction of the posterior and anterior two-thirds of the medial 

 wall of the axilla find the long thoracic nerve, which supplies the serratus 

 anterior and descends along its lateral surface from the apex to the base of 



