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40.0 MB (4.7 MB compressed)
3526 x 3964 pixels
30.0 x 33.5 cm ⏐ 11.8 x 13.2 in (300dpi)
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Goblet cell. Coloured transmission electron micrograph (TEM) of a section through a goblet cell in the lining of the small intestine, part of the digestive tract. It is full of mucus (red). A goblet cell secretes the mucus to protect the lining of the intestine. The brush-like surface of the small intestine consists of microvilli (green) which increase the surface area available for absorption of nutrients such as lipids, proteins and fat-soluble vitamins. The microvilli have a rapid turnover of 3-4 days. Magnification: x6800 when printed 10 centimetres wide.
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