Human Circulatory System Diagram - Anatomy & Function Explained #3623190 (License: Personal Use)

This educational infographic displays the human circulatory system with three key views: a cross-section of the heart, full-body vasculature, and a magnified microcirculation loop (labeled A-E). Red indicates oxygenated arterial blood, blue shows deoxygenated venous blood, and icons identify plasma, red/white blood cells, and platelets. The diagram clarifies how blood moves through pulmonary and systemic circuits to deliver oxygen and nutrients.

Used in biology textbooks, health education websites, and medical training materials to teach cardiovascular anatomy and physiology; targets students, educators, and patients seeking visual understanding of blood flow and heart function.