![](http://www.alamy.com/thumbs/6/101D2945-10FF-4269-87FE-B8209A05BCB0/2ADE4BF.jpg)
Images not to be used by the tobacco industry. Cartilage removed from a human knee during arthroscopic surgery, coloured scanning electron micrograph
Images not to be used by the tobacco industry. Cartilage removed from a human knee during arthroscopic surgery, coloured scanning electron micrograph (SEM). Cartilage is a connective tissue and is important structural component of the body. It is firm and tough but softer and more flexible than bone. Its purpose can include acting as a shock absorber and allowing bones to slide over one another. It can be found in many areas of the body including joints between bones, for example, elbows, knees and ankles. Cartilage is made up of specialized cells called chondrocytes which produce large amounts of extracellular matrix composed of collagen fibres, proteoglycan and elastin fibres. There are no blood vessels in cartilage to supply the chondrocytes and due to this lack of blood vessels, cartilage grows and repairs more slowly than other tissues. Magnification: x4500 when printed at 10cm wide
Size: 4813px × 3630px
Photo credit: © ANNE WESTON, FRANCIS CRICK INSTITUTE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: cartilage, chondrocytes, collagen, coloured, connective, elastin, false-coloured, fibers, fibres, healthcare, human, knee, medical, medicine, proteoglycan, sem, tissue