STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Cartilage cells. Coloured transmission electron micrograph (TEM) of a section through chondrocytes from nasal hyaline cartilage. The cell nuclei (nuclei) can be seen along with rough endoplasmic reticulum (purple lines) and glycogen granules (dots). Chondrocytes are the only cells found in cartilage. Hyaline cartilage is found in the epiphyseal plates of growing bones, and in the nose, larynx (voice box), trachea (windpipe) and bronchus. These cells produce and maintain the cartilage's extracellular matrix. Magnification: x3000 when printed 10 centimetres wide.
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