Drosophila third-instar larval blood cells pumped anteriorly through the dorsal vessel. Live visualization of blood cells pumped within the dorsal vessel (heart) of a Nrg-GFP;PxnYFP larva. Blood cells...

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®.

Lymphocyte emperipolesis by lung, alveolar macrophage (multinucleated giant cell)

Real-time adhesive capture of a circulating blood cell cluster at a Drosophila third-instar larval wound site. Real-time movie of blood cells visualized from dorsal side of a Nrg-GFP;PxnYFP larva. A c...

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 ...

Adhesive capture of a sheet of blood cells at the wound site in a Drosophila third-instar larva. Time-lapse movie of blood cells visualized from the dorsal side of a Nrg-GFP;PxnYFP larva. Blood cells ...

Peroxisomes in cultured rat hepatocytes have proliferated under treatment with 4-phenylbutyrate. The animal was transgenic for PPARalpha -/-, so phenyl butyrate acts without the PPAR receptor.

Transmission electron micrograph of a dividing myelocyte from the slender salamander Batrachoseps attenuatus showing mitotic chromosomes at late prophase.

Figure 238 from Chapter 7 (Mitochondria) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Mitochondria from brown adipose cells can attain a diameter of 5 to 7 µm (for scale, compare with the portion o...