Why is venesection done on the great saphenous vein?
Answers
Great saphenous vein
Great saphenous vein.png
The great saphenous vein and landmarks along its course
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The great saphenous vein and its tributaries at the fossa ovalis in the groin.
Details
Source dorsal venous arch of the foot, and others
Drains to femoral vein
Identifiers
Latin vena saphena magna
MeSH D012501
TA A12.3.11.003
FMA 21376
Anatomical terminology
[edit on Wikidata]
The great saphenous vein (GSV, alternately "long saphenous vein") is a large, subcutaneous, superficial vein of the leg. It is the longest vein in the body, running along the length of the lower limb, returning blood from the foot, leg and thigh to the deep femoral vein at the femoral triangle.
The purpose of the great vein is delivery of blood from the ankle, lower leg, and thigh to the femoral vein. Along its length are 10 to 20 one-way valves that keep the blood from flowing back toward the foot.