Human Heart Anatomy Infographic in Classic Medical Illustration

Biological diagram infographic titled "Human Heart Anatomy" centered on a clean labeled cross-section of the human heart, editorial-grade anatomical cutaway showing the four chambers, major vessels, and valve positions with scientifically accurate proportions for a curious enthusiast audience. Use a classic medical illustration (Netter-style) approach in a monochrome scientific palette: graphite, charcoal, cool gray, soft slate shading, subtle ivory background, calm educational mood. Render a central anterior cutaway/cross-section heart diagram with 7 labeled parts arranged evenly around the figure, each connected by a thin leader line, each with a short English heading and a one-line English function caption, all text sharp, high-contrast, and readable. Include these exact labels and captions: "Right Atrium" — "Receives oxygen-poor blood returning from the body."; "Right Ventricle" — "Pumps oxygen-poor blood to the lungs through the pulmonary artery."; "Left Atrium" — "Receives oxygen-rich blood returning from the lungs."; "Left Ventricle" — "Pumps oxygen-rich blood into the aorta for systemic circulation."; "Aorta" — "Main artery carrying oxygen-rich blood from the heart to the body."; "Pulmonary Artery" — "Carries oxygen-poor blood from the heart to the lungs."; "Mitral Valve" — "Prevents backflow from the left ventricle into the left atrium." Show clear internal septum separation and anatomically accurate vessel emergence, but keep the composition focused on the 7 requested labels. 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.