OF THE UPPER EXTREMITY. 



629 



usually ten or twelve in number. A chain of these glands surrounds the axillary 

 vessels, imbedded in a quantity of loose areolar tissue ; they receive the lymphatic 

 vessels from the arm ; others are dispersed in the areolar tissue of the axilla ; the 

 remainder are arranged in two series, a small chain running along the lower 

 border of the Pectoralis major, receiving the lymphatics from the front of the 

 chest and mamma ; and others are placed along the lower margin of the posterior 

 wall of the axilla, which receive the lymphatics from the integument of the back. 



Axillary glands. 



FIG. 340. The superficial lymphatics and glands of the upper extremity. 



Two or three subclavian or infra-clavicular lymphatic glands are placed immedi- 

 ately beneath the clavicle ; it is through these that the axillary and deep cervic 

 glands communicate with each other. The efferent vessels from the axillary glands 

 may be from one to three or four in number. They accompany the subclavian 

 vein into the neck, and end, on the right side, by joining the right lymphatic 

 on the left side by opening into the thoracic duct. 



Surgical Anatomy .-In malignant diseases, tumors, or other affections implicating the 

 upper pS of the back and shoulder, the front of the chest and mamma, the upper part of the 



