KEVIN MACKENZIE / UNIVERSITY OF ABERDEEN / SCIENCE PHOTO LIBRARY KEVIN MACKENZIE / UNIVERSITY OF ABERDEEN / SCIENCE PHOTO LIBRARY
Osteoblast cells. Fluorescence light micrograph of osteoblast cells stained for the cytoskeletal proteins actin (red) and tubulin (green). Cell nuclei (blue) are also highlighted. The cytoskeleton of a cell consists of protein filaments and microtubules that control cell shape and contribute to cell movement. Osteoblasts are cells that produce new bone tissue.
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