THE LYMPH GLANDS OF THE UPPER EXTREMITY 



699 



glands and partly to the small paratracheal glands which accompany the recurrent 

 nerves. These latter glands receive also the lymphatic vessels from the cervical 

 portion of the trachea. 



THE LYMPHATICS OF THE UPPER EXTREMITY. 



The Lymph Glands of the Upper Extremity (Fig. 606). 



The lymph glands of the upper extremity are divided into two sets, superficial 

 and deep. 



The superficial lymph glands are few and of small size. One or two supra- 

 trochlear glands are placed above the medial epicondyle of the humerus, medial 

 to the basilic vein. Their afferents drain the middle, ring, and little fingers, the 

 medial portion of the hand, and the superficial area over the ulnar side of the fore- 

 arm; these vessels are, however, in free communication with the other lymphatic 

 ; vessels of the forearm. Their efferents accompany the basilic vein and join the 

 deeper vessels. One or two deltoideopectoral glands are found beside the cephalic 

 vein, between the Pectoralis major and Deltoideus, immediately below the clavicle. 

 They are situated in the course of the external collecting trunks of the arm. 



Deltoideopectoral glands 



Lateral group 



Subdavicular group 



- Mammary lymphatic 



subdavicular glands 



Pectoral group 

 Mammary collecting 



trunks 



Subareolar plexus 



Cutaneous collecting trunk 

 from the thoracic wall 



Cutaneous collecting 

 trunks 



Colle 



lecting trunks 

 passing to internal 

 mammary glands 



FIG. 607. Lymphatics of the mamma, and the axillary glands (semidiagrammatic) . (Poirier and Charpy.) 



The deep lymph glands are chiefly grouped in the axilla, although a few may 

 be found in the forearm, in the course of the radial, ulnar, and interosseous vessels, 

 and in the arm along the medial side of the brachial artery. 



The Axillary Glands (lyinphoglandulce axillares) (Fig. 607) are of large size, vary 

 from twenty to thirty in number, and may be arranged in the following groups: 



1. A lateral group of from four to six glands lies in relation to the medial and 

 posterior aspects of the axillary vein; the afferents of these glands drain the whole 

 rm with the exception of that portion whose vessels accompany the cephalic 



