Phagocytosis of injected live E. coli and B. subtilis by early macrophages in the yolksac blood circulation valley; real time. A macrophage loaded with B. subtilis bacteria now phagocytoses an erythro...

Cells from peritoneal cavity exudate of the mouse, exposed to sodium azide at 22°C for 22 minutes. The macrophage in the field of view has extended long microvilli, showing a rapid response to change...

This scanning electron micrograph shows the internal structure of liver tissue from an adult mouse. The sinusoids (vascular channels lined with endothelial cells) can be seen as pink structures runnin...

This image shows two different types of white blood cells from a mouse which are essential for mammalian immune response to protect from infection. The larger cell is a macrophage and the smaller two...

Tomogram of the immunological synapse between a cytotoxic T lymphocyte (CTL, top) and a target cell (bottom). The microtubule organization centre (MTOC) is polarized to the cell-cell contact site. The...

Transmission electron micrograph of an alveolar macrophage which contains E2, a fluorocarbon. This macrophage is from a mouse which liquid breathed that fluorocarbon for 3 hours and was allowed to rec...

Colorized transmission electron microscope image of a mast cell full of histamine granules (pink). Histamine is released as part of an allergic reaction. The diameter of the cell is approx. 8.4 microm...

Cryopreserved human hair follicle dermal papilla cells were revived and stained for vimentin (in green) to reveal cytoskeleton, and DAPI (in blue) to label nuclei.

Colorized transmission electron micrograph of human immunodeficiency virus (HIV) particles (blue) budding from the surface of a T cell (a type of lymphocyte).The viruses replicate inside the cell with...

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...