THE VEINS OF THE TRUNK. 261 



It receives the vena comites and cephalic. At the lower 

 border of the first rib it becomes the 



Subclavian. The large venous trunk which lies an- 

 terior to the subclavian artery. It begins at the lower 

 border of the first rib and unites behind the sterno- 

 clavicular articulation with the internal jugular, forming 

 the innominate. It drains the superficial veins of the 

 neck. 



VEINS OF THE LOWER EXTREMITY. 



Veins of the lower extremity are superficial and 

 deep ; the superficial are : 



Long Saphenous. Begins by a venous arch on the 

 foot, passes up the inner side of the leg, and gradually 

 increases in size. It receives the superficial veins of 

 the lower extremity, passes through the saphenous open- 

 ing of the fascia lata, and terminates in the femoral. 



Short Saphenous. Begins at the outer side of the 

 foot, runs up the back part of leg, and empties into 

 the popliteal vein. 



The arteries of the leg have vena comites, which unite 

 at the lower part of the popliteal space and form the 



Popliteal Vein. Receives the deep veins of the leg 

 and knee-joint, runs up to the canal in the adductor 

 magnus muscle, and becomes the 



Femoral. The femoral accompanies the femoral 

 artery. It receives two important tributaries, the long 

 saphenous and profunda femoris veins. 



THE VEINS OF THE TRUNK. 



External Iliac. The continuation of the femoral 

 passes beneath Poupart's ligament, joins the internal 

 iliac, and forms the common iliac vein. It receives the 

 deep epigastric and deep circumflex iliac veins. 



Internal Iliac. Made up of the vena comites of the 



