Time lapse movie of mouse embryonic fibroblasts in culture imaged at 30 second intervals by phase contrast microscopy. A micropipette is positioned near the cells to deliver either a growth factor or...

Colorized scanning electron micrograph of a lung cancer cell grown in culture.

Dorsal root ganglion nerve cells stained to reveal the microtubules (green) and actin filaments (red). The axon shaft contains bundles of microtubules that give structural support and carry cargo (pro...

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...

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 ...

Figure 414 from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Transverse section of a portion of the cortex of a partially extended Stentor coerulus s...

Scanning electron micrograph of breast cancer cells that have aggregated.

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...

Figure 415 from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Longitudinal section of a Km fiber in a partially contracted Stentor coerulus. Ribbons o...

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 ...