DON W. FAWCETT / SCIENCE PHOTO LIBRARY DON W. FAWCETT / SCIENCE PHOTO LIBRARY
Color enhanced transmission electron micrograph of a capillary endothelial cell junction in the rete mirabile of the gas bladder of a toadfish. There are minor sites of adhesion, which appear as small clusters of intracellular plaque, just above and below the desmosome at the center of the image. Those less dense sites of adhesion are known as ''puncta adherens.'' (Enhancement of 9L8902).
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