Red blood cell — Free Physiology Illustration

Physiology

Red blood cell

A single normal human red blood cell (erythrocyte) shown isolated, face-on or at a very slight top or side angle, as a small round biconcave disc. It has a smooth, flexible-looking membrane with smooth edges, bright red to deep crimson or dark pink coloration, a darker and slightly thicker outer rim, and a paler centrally depressed area on both faces, creating the classic doughnut-like appearance without an actual hole. The cell is slightly flattened, softly shaded in a clean medical illustration, hematology diagram, or simple clipart style, with no nucleus or visible organelles.

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