Human Heart Anatomy Diagram - Educational Medical Illustration #9809 (License: Personal Use)

This medical illustration depicts the human heart with accurate color-coding: red vessels represent oxygen-rich arterial blood flow, while blue vessels indicate deoxygenated venous return. Key structures-including the aorta, pulmonary artery, superior/inferior vena cava, and atria/ventricles-are clearly shown to support learning in biology and cardiology contexts. The image uses simplified yet precise labeling ideal for classroom or clinical reference.

Used in educational websites, medical textbooks, health blogs, and anatomy courses to explain cardiovascular physiology; targets students, teachers, and patients seeking visual understanding of heart structure and circulation.