Perfect continuous one-line drawing, minimalist line art, single line. An anatomical human heart in the style of a medical atlas. The line starts as the superior vena cava, outlines the heart's atria and ventricles with precise anatomical details, and then seamlessly transforms into a calm, normal EKG line with regular, identical peaks, forming a perfect symmetrical arch beneath the heart. The entire drawing is a single, unbroken black line on a pure white background. Elegant, precise, authoritative medical logo. High contrast, high resolution. See more