(Based on the provided diagram — simplified/basic heart flow representation) 🔰 Overview of Blood Circulation Through the Heart ◾ The human heart pumps blood through two major circuits: pulmonary (lungs) and systemic (body). 🔹 Pulmonary circulation carries deoxygenated blood to the lungs for oxygenation. 🔹 Systemic circulation distributes oxygenated blood from the heart to all body tissues. ◾ The right side of the heart handles deoxygenated blood, while the left side handles oxygenated blood.