Diagram of Photosynthesis Style Alveoli Comparison Infographic

Biological diagram infographic titled "Comparison of Healthy and Diseased Alveoli" centered on a clean labeled diagram comparing two respiratory microstructures side by side: a biologically accurate enlarged cross-section of healthy human alveoli on the left and diseased thick-walled fluid-filled alveoli on the right, with a subtle comparison divider and matching scale. Arrange 9 labeled parts around the central diagram with thin leader lines, sharp readable typography, and short educational captions for undergraduate audience. Include these exact English labels and one-line function descriptions: "Alveolar sac" — "Cluster of air spaces where ventilation is distributed."; "Alveolus" — "Microscopic air chamber that enables gas exchange."; "Alveolar wall" — "Thin barrier that minimizes diffusion distance."; "Capillary network" — "Dense blood vessels carrying red blood cells past the air space."; "Red blood cell" — "Transports oxygen away and returns carbon dioxide."; "Type I pneumocyte" — "Flat epithelial cell forming most of the gas-exchange surface."; "Type II pneumocyte" — "Secretes surfactant to reduce surface tension and help keep alveoli open."; "Healthy gas exchange" — "Oxygen diffuses into blood and carbon dioxide diffuses into the alveolus efficiently."; "Diseased alveolus" — "Thickened wall and fluid or mucus reduce diffusion and ventilation efficiency." Show directional micro-arrows for "Oxygen in" and "Carbon dioxide out" across the healthy alveolar membrane, and reduced exchange arrows on the diseased side. Use editorial-grade scientific comparison layout, colorful kids-book visual style, cool clinical blues palette with soft cyan, teal, navy, and gentle contrasting accents, approachable but scientifically accurate mood, 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.