blood vessel 3d model

A highly detailed 3D scientific illustration of the microscopic tissue environment in the human body. Include: Red blood capillaries: soft tubular branching structures containing red blood cells flowing inside. Pale yellow lymphatic vessels: thinner walls, branching tubes, no red blood cells, filled with clear lymph fluid. Surrounding tissue cells: round or oval animal cells with visible nuclei, embedded in light blue interstitial fluid. Show substance exchange: oxygen and nutrients diffusing from blood vessels to cells; carbon dioxide and waste moving from cells into blood and lymphatic vessels. Use subtle arrows to indicate flow directions (not cartoonish). Style: realistic, scientific, 3D render, soft lighting, high detail, textbook-quality. No cartoon elements, no vehicles, no anthropomorphism.