STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Cartilage cells. Coloured transmission electron micrograph (TEM) of chondrocytes from nasal hyaline cartilage. Chondrocytes are the only cells found in cartilage, a connective tissue that provides structural support for the nose. The cells produce and maintain the cartilage's extracellular matrix, which consists of mucopolysaccharides (blue). The cell's nuclei are green. In their cytoplasm (red) are vacuoles containing granules of glycogen (brown), which provide the cell with energy. Magnification: x1600 when printed 10 centimetres wide.
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