This light micrograph shows a transverse section of a region of mouse kidney cortex stained with toluidine blue. The kidney is made up of two distinct tissue regions: the medulla and the cortex. The n...

Scanning electron microscope image of Strongylocentrotus drobachiensus [sea urchin] embryo at the late gastrula stage. Embryo was cut to reveal blastocoel cavity. The fertilization envelope dissolves ...

Freeze fracture images of ciliated epithelial cells, Figures 8 (top) and 9 (bottom 2 panels) from Chapter 1 (The Cell Surface) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Figure 8 shows the P-face ...

Abstracted from an image by Simionescu and Simionescu in The Journal of Cell Biology (70:608-621), ©1976, The Rockefeller University Press. This image was reprinted as Figure 319 from Chapter 13 (Cil...

Scanning electron microscope image of Strongylocentrotus drobachiensus [sea urchin] at the gastrula stage. Embryo was split open to reveal a nice cross-section through the outer epithelial layer and t...

Color-enhanced scanning electron micrograph of the inside of a guinea pig inner ear showing the hearing organ, or cochlea. Running along the spiral structure are rows of sensory cells which respond to...

A scanning electron microscope image of the sensory hair bundle of an inner hair cell from a guinea pig's hearing organ in the inner ear. Vibrations made by sound cause the hairs to be moved back and ...

Junctional complex between two cells in the epithelium of the rat intestinal mucosa. The tight junction (also known as zonula occludens) is the structure located nearest to the lumen. The elimination ...

Junctional complex between two cells in the epithelium of the rat intestinal mucosa. The tight junction (also known as zonula occludens, ZO) located nearest to the lumen extends from arrow 1 to arrow ...

Portion of a proximal convoluted tubule from a rat kidney with experimental hemoglobinuria. A mass of dense hemoglobin completely fills the tubule lumen and outlines the microvilli (MV) of the brush b...