JOSE CALVO / SCIENCE PHOTO LIBRARY JOSE CALVO / SCIENCE PHOTO LIBRARY
Tracheal mucosa, light micrograph. At top is the respiratory epithelium with goblet cells (purple ovals). Beneath this is the lamina propria with elastic fibres (dark purple dots) and blood vessels (filled with yellow red blood cells). Gabe technique. Magnification: x360 when printed at 10 centimetres wide.
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