What is the opening between the right auricle and the right ventricle called?AAortic valveBBicuspid valveCTricuspid valveDPulmonary valveAnswer: C. Tricuspid valve Read Explanation: The atrio-ventricular septum separates the atria and the ventricles. However, to permit the flow of blood from the right atrium to the right ventricle, there is an opening known as the tricuspid valve. Read more in App