Human Heart Anatomy Flow Infographic | Human Spinal Cord Diagram

Biological diagram infographic titled "Human Heart Anatomy Flow" centered on a clean labeled diagram of the human heart rendered as an editorial-grade anatomical cutaway cross-section with pathway / flow emphasis, showing blood movement with clear input → output markers and directional arrows. Compose for a curious enthusiast: a central heart illustration with 7 labeled components arranged evenly around the diagram, each connected by thin leader lines to the exact structure, each label containing a short heading in English and a one-line function description in English. Use biologically accurate proportions and naming, educationally tasteful anatomy, no gore. Label these 7 parts exactly as follows: "Superior vena cava" — "Returns deoxygenated blood from the upper body to the right atrium."; "Right atrium" — "Receives deoxygenated blood and passes it to the right ventricle."; "Right ventricle" — "Pumps deoxygenated blood to the lungs through the pulmonary artery."; "Pulmonary artery" — "Carries deoxygenated blood from the heart to the lungs."; "Left atrium" — "Receives oxygenated blood from the lungs through the pulmonary veins."; "Left ventricle" — "Pumps oxygenated blood into the aorta for the body."; "Aorta" — "Distributes oxygenated blood from the heart to the systemic circulation." Include subtle flow arrows: blue-toned pathway for venous input and pulmonary output, red-toned pathway for arterial output, with small input → output markers reading exactly "Body → Heart", "Heart → Lungs", "Lungs → Heart", and "Heart → Body". Add a small unobtrusive legend in English for oxygenated vs deoxygenated blood. Visual style: vintage 1900s scientific plate, natural anatomy tones palette, muted parchment background, sepia ink outlines, soft desaturated reds and blues, delicate engraved shading, refined scholarly mood. Ensure all text is sharp and readable. Include medical-textbook clarity, editorial scientific illustration, vector-clean lines, no photographic textures. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no graphic gore, no real patient photos, no watermarks No graphic medical gore, no real patient photographs, no surgical blood. For human anatomy, keep illustrations educationally tasteful. For animal anatomy, no cruelty imagery. Scientifically accurate labeling and proportions.