Human Heart Anatomy Infographic | Fatty Acid Synthesis Pathway Diagram

Biological diagram infographic titled "Human Heart Anatomy". Center the composition around a clean labeled diagram of the human heart shown as an editorial-grade anatomical cutaway/cross-section, but organized as a pathway / flow with clear input → output direction markers showing blood flow through the heart. Use scientifically accurate human cardiac proportions and biologically accurate anatomical naming, educationally tasteful presentation, no gore. Arrange 7 labeled components around the central heart with thin leader lines; each label must include a short heading in English and a one-line function description in English. Show flow arrows through chambers and great vessels in a logical sequence. Include these exact labels and captions: "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 for gas exchange."; "Left atrium" — "Receives oxygenated blood from the lungs through the pulmonary veins."; "Left ventricle" — "Pumps oxygenated blood into the aorta for systemic circulation."; "Aorta" — "Distributes oxygenated blood from the heart to the body.". Add small input and output markers reading "Input: deoxygenated blood" and "Output: oxygenated blood". Visual style: vintage 1900s scientific plate, natural anatomy tones palette, muted reds, warm ivory, sepia ink lines, soft tan paper tone background, refined engraving-inspired shading, elegant historical textbook layout, sharp readable typography, calm educational mood for a curious enthusiast. 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.