Infographie vintage du cœur humain, style schema cellule

Biological diagram infographic titled "Human Heart Anatomy" centered on a clean labeled diagram of the human heart in an educational pathway / flow layout with input → output markers, showing a tasteful editorial-grade cross-section of the heart with simplified but biologically accurate internal anatomy for kids ages 8-12. Arrange 7 labeled components around the central heart with thin leader lines, sharp readable English text, and gentle flow arrows indicating blood movement from body → heart → lungs → heart → body. Include these exact labels and captions in English: "Right Atrium" — "Receives blood returning from the body."; "Right Ventricle" — "Pumps blood to the lungs."; "Left Atrium" — "Receives oxygen-rich blood from the lungs."; "Left Ventricle" — "Pumps oxygen-rich blood to the body."; "Septum" — "Separates the right and left sides of the heart."; "Pulmonary Artery" — "Carries blood from the heart to the lungs."; "Aorta" — "Carries oxygen-rich blood from the heart to the body." Show input and output markers reading "From Body", "To Lungs", "From Lungs", and "To Body" placed along the flow path. Visual style: vintage 1900s scientific plate, natural anatomy tones palette, soft aged-paper background, muted reds, creams, browns, and subdued blue vessel accents, elegant historical textbook composition, calm and approachable mood for children. 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.