JOSE CALVO / SCIENCE PHOTO LIBRARY JOSE CALVO / SCIENCE PHOTO LIBRARY
Layers of trachea wall, light micrograph. At upper left is the mucosa layer, which consists of respiratory epithelium (uppermost) with goblet cells (purple ovals) and the lamina propria with elastic fibres (dark purple dots) Gabe technique. Magnification: x360 when printed at 10 centimetres wide.
Model release not required. Property release not required.