<prompt> Perforators are not present at -AnkleMedial calfDistal to calfBelow inguinal ligament  <response>: Ans. is d i.e., Below inguinal ligament Blood flows from the superficial to the deep veins through perforating communicating veins Perforators are located - below the medial malleolus inframalleolar perforator - in the medial calf Cockett perforators - just above Dodd perforator below the knee Boyd perforator - at the level of the adductor canal Hunterian perforator 