THE THIGH 



1175 



ment, extending between the anterior superior spine of the iHum and the spine of 

 the pubes. The Hne representing it should be drawn sHghtly convex downwards, 

 owing to the attachment of the deep fascia. It forms the base of Scarpa's triangle; 

 its inner attachment blends with the triangular Ginil»ernat's ligament. The parts 

 passing under Poupart's ligament and their arrangement have been given elsewhere. 

 Scarpa's triangle (fig. 741). — Immediately below Poupart's ligament, a hollow 

 is seen eorre^fpunding to this region, the outer and inner boundaries of which are 



Fig. 740.— Diagram of Auterie.s ok Thigh. 



lli(t-liimhar artery 



Deep circumflex iliac, anastomoning with 

 ilio-lumbar of internal iliac 



Common femoral 



Deep femoral (profunda'). [Should be 



larger at origin.) 

 Descending branch of external circumflex 



Popliteal 



Superior external articular, anastomosing 

 with external circumflex, etc. 



Inferior external articular 



Posterior tibial recurrent (from anterior 



tibial) 



Anterior tibial recurrent 



Superior fibular 



Anterior tibial 



Common iliac artery 



Deep epigastric 



Internal iliac, dividing into anterior and 

 posterior trunks 



External iliac 

 Obturator 



Sciatic 



Internal pudic 



Lower terminal branch of internal cir- 

 cumflex 



Superficial femoral (muscular branches 

 omitted) 



Perforating branches of deep femoral, 

 forming anastomotic loops and supply- 

 ing posterior muscles 



Anastomotica magna 



Popliteal, giving off superior muscular 

 branches 



Superior internal articular 



Inferior internal articular (sural arteries 



arising below this omitted) 

 Posterior tibial 



brought into view when the limb is raised, the adductor longus especially when 

 the limb is abducted, and the sartorius where the thigh is Hexed and adducted and 

 carried towards its fellow. Lving superficially in the base of the triangle, the lym- 

 phatic glands can be detected' in\i thin person (fig. 769). They lie in two groui)s 

 —(a) One horizontal in a line with Poui)art's ligament, and receiving lymph from 

 the genitals, the lower part of the abdominal wall, and the inner aspect of the 

 buttock; (6) a vertical set lving along the great vessels receiving lymph from the 



