VEINS OF LOWER EXTREMITY 



207 



SUMMARY 



The venous blood from all structures above the diaphragm 

 (except the heart) is returned through the superior vena cava to 

 the right heart (right atrium). 



PRINCIPAL VEINS OF THE LOWER 

 EXTREMITY 



Deep. From the dorsum of the foot the 

 veins form the anterior tibial veins ; from the 

 sole of the foot, the posterior tibial. 



The tibial veins run upward in the leg 

 and unite to form the popliteal, which con- 

 tinues as the femoral, and these two veins 

 receive others corresponding in name to 

 the branches of the arteries which they 

 accompany. 



Superficial. From the lateral part of 

 the foot and leg, by the small saphena vein, 

 to the popliteal (Fig. 143). 



From the dorsum and medial part of 

 the foot and leg by the great saphena vein 

 to the femoral, passing through the oval 

 fossa in the fascia lata, below the inguinal 

 ligament (Fig. 144). The femoral vein 

 becomes external iliac. 



VEINS OF THE PELVIS AND ABDOMEN FIG. 145. SHOWING 



FORMATION OF THE LARGE 

 The veins of the pelvic organs are VEINS. 



large and numerous. 



In the vaginal walls and around the subclavian; 5,6, int. and evt. 



. f . . , . jugular veins; 8, inferior 



lower end of the vagina, also in the rec- vena cava; 14, common iliac 



turn especially, they form close networks 

 or plexuses which when wounded bleed 

 profusely. The veins of the anal canal are prone to become con- 

 gested and assume a varicose condition constituting hemorrhoids. 

 The pelvic veins empty into the hypogastric, and the hypo- 

 gastric and external iliac veins unite to form the common iliac. 



