What is the difference between appositional and interstitial growth?
appositional growth increases in thickness, in width, while interstitial growth increases within to increase in length.
because articular cartilage lacks the perichondrium, a layer surronding the cartilage and responsible for the synthesis of chondroblasts. In the absence of chondroblast, chondrocytes cannot be formed by appositional growth and by interstitial growth, therefore a damaged cartilage cannot be regenerated. Pierre Akiki, MED 1 balamand university, Lebanon