VEINS, LYMPHATICS, ARTERIES, AND NERVES 83 



are the inguinal group and the large popliteal gland. Practi- 

 cally all the lymph passes through these glands enroute to the 

 thoracic duct. 



Method: Force an entrance between the biceps femoris m. 

 {2)^) and semimembranosus m. (as directed in Chap. VI, Method) 

 and transect the biceps femoris just proximad of the branch of 

 the sural a. (26) so that the insertion end of the biceps with its 

 branch of the sural artery will remain intact. Note the artery 

 (25) supplying, and the mass of fat enclosing, the popliteal 

 lymph gland. Separate the lateral from the medial head of the 

 gastrocnemius muscle and transect the lateral head and also 

 the superficial vein which passes over it in order to gain ready 

 access to the popliteal artery (25). 



B. ARTERIES OF THE THIGH 



(Nos. 18-25; Fig. 25) 



Read the description of the nerves of the thigh, C, before 

 beginning dissection of the arteries of this part of the limb, 

 which are essentially branches of the femoral. 



18. Femoral artery: The external ihac artery (Fig. 28, EI) 

 becomes the femoral after passing out of the abdominal cavity 

 dorsad to Poupart's (inguinal) ligament, which is the landmark 

 for distinguishing these two arteries. Note its parallel relation 

 to the femoral vein and femoral (anterior crural) nerve. Ready 

 access to the femoral artery is gained by entering at a point on 

 the middle medial surface of the thigh between the sartorius 

 (37) and gracilis (38) muscles. Be careful not to injure the 

 superficial epigastric artery (21). Numerous "rami muscu- 

 lares" pass from the femoral trunk to various muscles. 



19. Pudic (superficial external and deep external' pudic) 

 aa. : Femoral; to the pubic, or hypogastric and iliac regions of the 

 abdominal wall, scrotum, in the male, or labia majora, in the 

 female. 



20. Profunda femoris a.: Caudolateral side of femoral; to 

 proximal portion of thigh, adductores magnus and longus and 



