STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Bile duct. Coloured scanning electron micrograph (SEM) of a fractured bile duct. Columnar epithelial cells are red, lamina propria is purple and microvilli are brown. Magnification: x1300 when printed 10 centimetres wide.
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