<prompt> Right coronary artery arises from which sinus:Right aorticLeft aorticCoronary sinusAnterior aortic sinus  <response>: Right coronary arteryorigin: Left posterior aortic sinus of aortaSupplies :a Right atrium b right ventricle except area adjoining anterior inter ventricular groove. c small part of left atriumLeft Coronary ArteryOrigin: left posterior aortic sinus of ascending aorta.Supplies:a Left atriumb left ventricle except area adjoining posterior inter ventricular groove c small part of right ventricle. 