👉 Red blood cells are tiny, resembling a sphere with an outer membrane. Their main job is swiftly transporting oxygen from lungs to body's cells; they're so compact they can squeeze through capillaries easily.
👉 Red blood cells are tiny, resembling a sphere with an outer membrane. Their main job is swiftly transporting oxygen from lungs to body's cells; they're so compact they can squeeze through capillaries easily.
https://goldloadingpage.com/word-dictionary/narrow blood cells
