

701 



form a trunk, which passes around the metacarpal bone of the index finger to join 

 the vessels on* the back of that digit and on the back of the thumb. Running 

 upward in front of and behind the wrist, the lymphatic vessels are collected 

 into radial, median, and ulnar groups, which accompany respectively the cephalic, 

 median, and basilic veins in the forearm. A few of the ulnar lymphatics end in 

 the supratrochlear glands, but the majority pass directly to the lateral group of 

 axillary glands. Some of the radial vessels are collected into a trunk which 

 ascends with the cephalic vein to the deltoideopectoral glands; the efferents from 

 this group pass either to the subclavicular axillary glands or to the inferior cervical 

 glands. 



The deep lymphatic vessels accompany the deep bloodvessels. In the fore- 

 arm, they consist of four sets, corresponding with the radial, ulnar, volar, and 

 dorsal interosseous arteries; they communicate at intervals with the superficial 

 lymphatics, and some of them end in the glands which are occasionally found beside 

 the arteries. In their course upward, a few end in the glands which lie upon the 

 brachial artery; but most of them pass to the lateral group of axillary glands. 



--- Tibial nerve 

 Popliteal vein 



- Popliteal artery 



Common peronaeal nerve 



Gland at side of popliteal 



Gland on back of knee 



joint 



Gland at termination of 

 small saph. vein 



FIG. 609. Lymph glands of popliteal fossa. (Poirier and Charpy.) 



THE LYMPHATICS OF THE LOWER EXTREMITY. 



The Lymph Glands of the Lower Extremity. 



The lymph glands of the lower extremity consist of the anterior tibial gland 

 and the popliteal and inguinal glands. 



The anterior tibial gland (lymphoglandula tibialis anterior) is small and incon- 

 stant. It lies on the interosseous membrane in relation to the upper part of the 

 anterior tibial vessels, and constitutes a substation in the course of the anterior 

 tibial lymphatic trunks. 



The popliteal glands (lymphoglandula popliteci) (Fig. 609), 'small in size and 

 some six or seven in number, are imbedded in the fat contained in the popliteal 



