Chap. XI] 



SUMMAEY 



213 



Superior Vena 

 Cava 



Thoracic Veins 



Femoral 

 Veins 



External 



Iliacs 

 Internal 



Iliacs 

 Common 



Iliacs 



Inferior Vena 

 Cava 



Supplemen- 

 tary 

 Channel 



Portal Cir- 

 culation 



Foi'ined by union of right and left innominate veins. 



Three inches long. 

 Opens into right auricle. 

 — Majority foUow same course and bear same name as 



arteries. 

 Continuation of the popliteal and extend from opening in 



adductor magnus muscle to the inguinal ligament. 



(1) Receive blood from deep veins of foot, leg, and thigh. 

 They accompany the arteries and are called by the 



same names. 



(2) Receive blood from the r ^^^^^^^^^^ saphenous. 



superficial vems, two ^^^^^^^ saphenous, 

 are important I 



Continuation of femoral veins. Extend from inguinal 



hgament to the joint between sacrum and ilium. 

 Formed by union of veins corresponding to branches of 



internal iliac artery. 

 Formed by union of external and internal iUacs. Extend 



from base of sacrum to the fourth lumbar vertebra. 

 Formed by union of the common iliacs. 

 Extends from fourth lumbar vertebra to the right auricle 



of the heart. 

 Receives many tributaries corresponding to arteries given 



off from the aorta. 



1. Right azygos vein ^ Connect with superior vena 



2. Left lower azygos vein i cava above, and inferior 



3. Left upper azygos vein J vena cava below. 

 ■ Splenic vein and superior \ Unite to form 



mesenteric vein / portal vein. 



Empty into the 

 Gastric vein and inferior 



mesenteric vein 



Portal 

 Vein 



portal vein be- 

 fore it enters 

 the liver. 

 Carries blood to liver, breaks up into capil- 

 laries, then unites with capillaries from 

 hepatic artery to form hepatic vein. 

 Hepatic Vein — empties into inferior vena cava. 



