ERIC GRAVE / SCIENCE PHOTO LIBRARY ERIC GRAVE / SCIENCE PHOTO LIBRARY
Hyaline cartilage. Light micrograph of a section through the human trachea (or windpipe) that shows the hyaline cartilage that forms the trachea's main supportive structure. Hyaline cartilage is known as the "true cartilage". It is smooth and pearly and covers the articular surface of bones in the body. The black nuclei of specialised chondrocyte-cells can be seen. These cells are found embedded in a matrix composed of varying amounts of the protein collagen, which they produce. Magnification: x250 at 35mm size.
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