Human Heart Anatomy Diagram - Chambers, Valves, and Blood Flow Explained #3356319 (License: Personal Use)

This labeled illustration depicts the four cardiac chambers-right atrium, right ventricle, left atrium, and left ventricle-along with key valves (tricuspid, pulmonary, mitral, aortic) and major vessels including superior/inferior vena cava, pulmonary arteries/veins, and aorta. Yellow arrows indicate direction of blood flow, with blue representing deoxygenated blood entering the right side and red denoting oxygenated blood exiting the left side into systemic circulation. The pericardium and heart muscle layers are also annotated for structural context.

Used in medical textbooks, anatomy courses, healthcare websites, and patient education materials to explain cardiac physiology and circulation; matches user intent for learning heart structure, preparing for exams, or understanding cardiovascular conditions.