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