50 G 



LYMPHATICS. 



Fig. 318. The Superficial Lymphatics and 

 Glands of the Lower Extremity. 



CuptTfle!aJt\ 



found by the side of the anterior tibial 

 artery, upon the interosseous membrane 

 at the upper part of the leg. Occasion- 

 ally two glands are found in this situa- 

 tion. 



The deep popliteal glands, four or five 

 in number, are of small size ; they sur- 

 round the popliteal vessels, imbedded in 

 the cellular tissue and fat of the popliteal 

 space. 



The deep inguinal glands are placed 

 beneath the deep fascia around the femo- 

 ral artery and vein. They are of small 

 size, and communicate with the super- 

 ficial inguinal glands through the saphe- 

 nous openings. 



The glutml and ischiatic glands are 

 placed, the former above, the latter below 

 the Pyriformis muscle, resting on their 

 corresponding vessels as they pass 

 through the great sacro-sciatic foramen. 



The Lymphatics of the lower extre- 

 mity, like the veins, may be divided into 

 two sets, superficial and deep. 



The superficial lymphatics are placed 

 between the integument and superficial 

 fascia, and are divisible into two groups, 

 an internal group, which follow the 

 course of the internal saphenous vein ; 

 and an external group, which accom- 

 pany the external saphenous. The in- 

 ternal group, the larger, commence on 

 the inner side and dorsum of the foot ; 

 they pass, some in front, and some be- 

 hind the inner ankle, run up the leg 

 with the internal saphenous vein, pass 

 with it behind the inner condyle of the 

 femur, and accompany it to the groin, 

 where they terminate in the group of in- 

 guinal glands which surround the saphe- 

 nous opening. Some of the efferent 

 vessels from these glands pierce the crib- 

 riform fascia and sheath of the femoral 

 vessels, and terminate in a lymphatic 

 gland contained in the femoral canal, 

 thus establishing a communication be- 

 tween the lymphatics of the lower ex- 

 tremity and those of the trunk; others 

 pierce the fascia lata, and join the deep 

 inguinal glands. The external group arise 

 from the outer side of the foot, ascend 

 in front of the leg, and, just below the 

 knee, cross the tibia from without in- 

 wards, to join the lymphatics on the 

 inner side of the thigh. Others com- 

 mence on the outer side of the foot, pass 

 behind the outer malleolus, and accom- 



