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.

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...

A scanning electron microscope image of an activated mast cell illustrating the convoluted topography of the cell membrane, which is populated with receptors.

Micrograph of developing bone (ossification) in a bird. The image was collected at 200x using brightfield illumination. Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®.

Confocal image showing damaged collagen fibres in a ruptured tendon. The area of wavey fibres to the lower right shows the normal healthy appearence of tendon. The waviness allows the whole tendon to ...