Short answer: Be a drop of blood and go from the heart to a toe and back
Heart-->aortic arch--thoracic aorta-->descending aorta-->common iliac artery-->external iliac artery--->femoral artery-->popliteal artery-->tibial arteries-->lateral and medial plantar arteries/dorsalis pedis arteries-->digital arteries-->cappilaries-->digital viens-->dorsal and plantar veins-->fibular and tibial veins, great and small saphenous veins-->popliteal vein --> femoral vein>extrernal iliac vein common iliac vein --inferior vena cava--> heart