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Developing tooth, SEM
Coloured scanning electron micrograph (SEM) of a developing tooth. At bottom is the enamel (white) of the tooth, which is secreted by ameloblast cells (red). These cells are initially long and cylindrical but shorten during the growth of the tooth. They die off before the tooth erupts. Across top are cells (beige) of the stratum intermedium, an epithelial tissue associated with the ameloblasts. The picture was created as part of a cooperation with Quintessenz Publishing. Magnification: x500 when printed at 15cm wide., by EYE OF SCIENCE/SCIENCE PHOTO LIBRARY
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