If coronary sinus: right atrium, then, left ventricle: ________ (1) Pulmonary vein (2) Systemic aorta (3) Pulmonary aorta (4) Left atrium contexto.130 3 years ago Correct Answer: (2) Systemic aorta Explanation: If coronary sinus: right atrium, then, left ventricle: Systemic aorta.