Human Heart Anatomy Diagram - Chambers, Valves, and Blood Flow Explained #2367865 (License: Personal Use)

The illustration uses distinct colors-blue for deoxygenated blood pathways (right atrium and ventricle), pink for oxygenated blood (left atrium and ventricle), and red for the aorta-to clarify circulation. Arrows indicate blood flow direction through the four chambers and major vessels, with clear labels for each structure including the tricuspid and mitral valves. Dotted lines highlight the interventricular septum separating left and right sides.

Used in medical education, biology textbooks, health websites, and patient information portals to explain cardiac anatomy and circulation; matches user intent for learning or teaching cardiovascular physiology.