A little bit on articular cartilage, or chondyle: it’s the very slippery material on the front of the femur at the knee joint that allows smooth and easy bending of knees. How slippery? Cartilage on cartilage rubbing is 10X more slippery than ice rubbing on ice. The articular cartilage is ~4mm thick, and mine had worn to the bone, resulting in arthritis. Yes, I’m a 40 year old with arthritis, but hopefully not for long.
|Copied from http://www.orthspec.com/articular_cartilage_injury.htm|
(Each white area is cartilage, each tan area is bone.)