Confocal micrograph of a stimulated mast cell that has just exploded releasing numerous histamine granules. The remains of the cell are seen towards the lower left, still containing a number of granul...

Confocal microscope image of a mouse fibroblast cell about to divide. The nuclei are stained red, and the actin and tubulin filaments of the cytoskeleton, forming the internal framework, are stained g...