The most common and movable type of joint which is characterized by the presence of a layer of fibrocartilage or hyaline cartilage that lines the opposing bony surfaces, as well as a lubricating synovial fluid within the synovial cavity.
These joints are the most movable type of joints in the human body in contrast to cartilaginous joints (such as synchondroses and symphyses) and fibrous joints (such as sutures, gomphoses and syndesmoses).
Results from our forum
... Therapeutics, examined 300 knuckle crackers for evidence of joint damage. The results revealed no apparent connection between joint cracking ... is induced as part of the treatment. Backs, knees, elbows and all other movable joints are subject to the same kind manipulation as knuckles are.
See entire post