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Great saphenous vein
The great saphenous vein (GSV), previously also called the 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.
The terms "saphaina" (Greek, meaning "manifest," "to be clearly seen") and "safoon" (Hebrew, "שָׂפוּן" meaning "hidden/covered") as well as "safin" (Arabic, "سافن" meaning "deep/embedded") have been claimed as the origin for the word "saphenous."
==Structure==
The great saphenous vein originates from where the dorsal vein of the big toe (the Hallux) merges with the dorsal venous arch of the foot. After passing in front of the medial malleolus (where it often can be visualized and palpated), it runs up the medial side of the leg. At the knee, it runs over the posterior border of the medial epicondyle of the femur bone. The GSV then courses anteriorly to lie on the anterior surface of the thigh before entering an opening in the fascia lata called the saphenous opening. It forms an arch, the saphenous arch, to join the common femoral vein in the region of the femoral triangle at the sapheno-femoral junction.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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