<prompt> NOT a true statement among the following isCoronary Sinus is situated in posterior Coronary sulcusCoronary Sinus is guarded by Thebesian valveMiddle cardiac Vein runs along with posterior Interventricular arteryAll cardiac veins are derived from Coronary sinus  <response>: All cardiac veins are derived from Coronary sinus with the exception of Anterior cardiac veins which are derived from primitive atrium. 