Circuits of Life: The Heart's Journey

This chapter explores the intricacies of the cardiovascular system, focusing on the two blood flow circuits: one to the body and another to the lungs. It covers the flow of deoxygenated blood through the heart, detailing the roles of the right atrium, right ventricle, and the pulmonary artery, while also explaining the oxygenation process in the lungs. The chapter concludes with an examination of the mitral valve and the critical role of the aorta in distributing oxygenated blood throughout the body.