Fibroblast cells Fluorescent light micrograph of two fibroblast cells showing their nuclei green and cytoskeleton The cytoskeleton is made up of microtubules of the protein tubulin yellow and filaments of the protein actin blue The cytoskeleton supports the cells structure allows the cell to move and assists in the transport of organelles and vesicles within the cell Fibroblasts are cells forming connective tissue and are responsible for secreting connective tissue proteins such as collagen Magnification x when printed cm wide
