Blood Circulation & Conduction SystemVersion en ligne In this game, players must correctly order the stages of blood circulation & conduction system in the human body. The objective is to understand how blood flows through the heart, lungs, and body; and how the signals travel in the heart. par Keng Chi 1 Order the elements based on the sequence of blood flow through the pulmonary circulatory system. Left atrium Lungs Right ventricle Pulmonary arteries Pulmonary veins Right atrium 2 Order the elements based on the sequence of blood flow through the systemic circulatory system. Aorta Left atrium Whole body Left ventricle Right atrium Vena cava 3 Order the elements based on the sequence of heart conduction system Left & right bundle branch Purkinje fibers Bundle of His Sinoatrial (SA) node Atrioventricular (AV) node