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. Pulmonary arteries Right atrium Pulmonary veins Right ventricle Left atrium Lungs 2 Order the elements based on the sequence of blood flow through the systemic circulatory system. Right atrium Aorta Whole body Left atrium Vena cava Left ventricle 3 Order the elements based on the sequence of heart conduction system Sinoatrial (SA) node Purkinje fibers Left & right bundle branch Atrioventricular (AV) node Bundle of His