venous system anatomy

circulatory system, venous anatomy, venous circulation, venous anatomy, dorsal venous arch, veins, superficial femoral vein, Vein, vein, human venous system, venous circulation, venous circulatory system, brachiocephalic vein, human venous system, veins of the body, small saphenous vein, upper extremity venous anatomy, common iliac vein, vein circulation, superficial femoral vein,