Anatomy General bf444d34 NOT a true statement among the following is A Coronary Sinus is situated in posterior Coronary sulcus B Coronary Sinus is guarded by Thebesian valve C Middle cardiac Vein runs along with posterior Interventricular artery D All cardiac veins are derived from Coronary sinus High-Yield Explanation All cardiac veins are derived from Coronary sinus with the exception of Anterior cardiac veins which are derived from primitive atrium.