Human Heart Anatomy Diagram - Labeled Cardiovascular Structure #1204690 (License: Personal Use)

This hand-drawn-style anatomical illustration depicts the human heart with distinct color coding: red for oxygenated blood pathways (arteries) and blue for deoxygenated blood pathways (veins). Key structures such as the aorta, pulmonary artery, superior vena cava, and atria/ventricles are visually differentiated. The image balances clarity and scientific accuracy, making it suitable for introductory biology or health education.

Used in educational websites, medical blogs, K-12 science curricula, and healthcare patient resources to explain cardiovascular function; targets users seeking foundational heart anatomy knowledge.