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...

Multiphoton image of microglia (GFP, green) and cerebral blood vessels (Texas-red dextran, red) in living, anesthetized transgenic mouse. Microglia are glial cells that are the resident macrophages. H...

Gallbladder wall of a human patient with gallstones. The duct (clear zone at center) is lined by highly polarized epithelial cells with dark nuclei at the base. At the top of the picture, below the...

Transmission electron micrograph of a section of a human polymorphonuclear neutrophil from circulating blood. Neutrophil nuclei are often lobed, as seen in the electron micrograph and light micrograph...

Gallbladder wall of a human patient with gallstones. The top layer is composed of highly polarized epithelial cells with microvilli partially visible at the apex and dark nuclei at the base. Below ...

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...

Gallbladder wall of a human patient with gallstones. This low magnification view shows the wall of the diseased gallbladder to have a top layer of highly polarized epithelial cells over a large volu...

Transmission electron micrscope image of a thin section cut through an area of bone marrow area near the cartilage/bone interface in a mouse kneecap. Image shows small opening in the thin endotheliun ...

This scanning electron micrograph of salmonella bacteria, was made possible by using low kV to visualize the surface detail of the bacteria. The image was taken with the VcD (backscatter detector), u...

Shown is a hematoxylin and eosin stained section through a plasmablastic lymphoma of the oral cavity in an HIV-positive adult male. There is a diffuse proliferation of large neoplastic cells most of w...