Vintage Alveoli Gas Exchange Infographic Diagram of Photosynthesis

Biological diagram infographic titled "Human Respiratory Alveoli Gas Exchange Pathway". Center the composition around a clean LABELED DIAGRAM showing an editorial-grade anatomical cross-section merged with a pathway flow: terminal bronchiole leading into alveolar duct, alveolar sac, clustered alveoli, and the surrounding pulmonary capillary network, with clear input → output markers for inhaled air and exchanged gases. Render as a vintage 1900s scientific plate with natural anatomy tones palette, muted sepia paper feel, soft cream background, warm reds, dusty pinks, pale lung beige, subdued blue-red vessel accents, elegant engraved-science styling, medical-textbook clarity, editorial scientific illustration, vector-clean lines, no photographic textures. Show 7 labeled components arranged neatly around the central diagram, each connected by a thin leader line, each with a short label in English and a one-line function description in English, all text sharp and readable. Include directional flow arrows for air movement and gas diffusion: input marker for oxygen-rich inhaled air entering from bronchiole side, output marker for carbon dioxide leaving toward exhaled air, plus arrows showing oxygen diffusing into blood and carbon dioxide diffusing into alveolar air. Labels to render exactly as: 1. "Terminal Bronchiole" — "Conducts air toward the gas exchange region." 2. "Alveolar Duct" — "Distributes inhaled air into the alveolar sacs." 3. "Alveolar Sac" — "Cluster chamber that opens into multiple alveoli." 4. "Alveolus" — "Thin-walled air pocket where gas exchange occurs." 5. "Capillary Network" — "Carries blood around the alveoli for rapid diffusion." 6. "Oxygen Diffusion" — "O2 moves from alveolar air into the bloodstream." 7. "Carbon Dioxide Diffusion" — "CO2 moves from blood into the alveolus for exhalation." Add subtle small legend cues for input → output pathway without extra clutter. Keep proportions scientifically accurate, educationally tasteful, and suitable for a curious enthusiast. No graphic medical gore, no real patient photos, no surgical blood, no cruelty imagery, no watermarks. 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.