AXILLARY SPACE 



part of the arm. To reach this destination it crosses the 

 axilla and pierces the deep fascia. But before piercing the 

 fascia it establishes communications and forms a plexiform 

 arrangement in the axilla with the medial cutaneous nerve of 

 the arm, and the lateral branch of the third thoracic nerve. 

 The plexus so formed may be joined by another twig which 



Acromial branch of thoraco-acromial artery 



r y T , 



Thoraco-acromial artery 



Clavicular branch of 

 thoraco-acromial artery 



Deltoid branch of thoraco-acromial artery 

 Axillary artery 

 | Anterior humeral circumflex artery 



Coracoid process 

 cromial 

 Axillary arte 



Posterior humeral 

 circumflex artery 

 Subscapular artery 



Circumflex scapular artery 



Subclavius muscler' 



Supreme thoracic 

 artery- 

 Pectoral branch of. 

 thoraco-acromia 

 artery 



'Thoraco-dorsal artery 

 Serratus anterior 

 Lateral thoracic artery 



FIG. 15. Dissection of the Axillary Artery and its Branches. 



is occasionally present, viz., the minute lateral cutaneous 

 branch of the first thoracic nerve. 



The lateral branch of the third thoracic nerve divides into 

 an anterior and posterior part, which are distributed in the 

 ordinary way. From the posterior branch twigs are given to 

 the skin of the axilla, and the terminal twigs are distributed 

 to the integument on the proximal part of the medial aspect 

 of the arm. 



Arteria Axillaris. The axillary artery is the chief artery 



