Bone: Because bone has marrow in it (which produces the body's healing cells), it heals much more quickly than joint cartilage. Once joint cartilage is damaged, it is never quite the same and the type that grows back is not as smooth or as strong as the original. read more
Why chondrocytes can become activated in bone healing but not in healing joint cartilage remains a mystery, although one that is being actively investigated by many scientists who are trying to find ways to get cartilage to heal. read more
Bone injuries heal very quickly because bone has a lot of directblood flow. read more