Editing Human leg (section)

=== Veins ===
[[File:Blausen 0609 LegVeins.png|thumb|upright=0.8|[[Vein]]s of the leg]]

The [[vein]]s are subdivided into three systems. The [[deep vein]]s return approximately 85 percent of the blood and the [[superficial vein]]s approximately 15 percent. A series of [[perforator vein]]s interconnect the superficial and deep systems. In the standing posture, the veins of the leg have to handle an exceptional load as they act against gravity when they return the blood to the heart. The [[venous valve]]s assist in maintaining the superficial to deep direction of the [[blood flow]].<ref name="Thieme-Atlas-466">''Thieme Atlas of Anatomy'' (2006), pp. 466–67</ref>

Superficial veins:
* [[Great saphenous vein]]
* [[Small saphenous]]

Deep veins:
* [[Femoral vein]], whose segment is the [[common femoral vein]]
* [[Popliteal vein]]
* [[Anterior tibial vein]]
* [[Posterior tibial vein]]
* [[Fibular vein]]