MICROANATOMY

Detailed explanation-1: -a. Zone of Resting Cartilage: This is the area where the hyaline cartilage remains unchanged. b. Zone of Prolieferating Cartilage: In this area, cells divide and pile up quickly separating the epiphysis from the diaphysis.

Detailed explanation-2: -Along with collagen fiber ultrastructure and ECM, chondrocytes contribute to the various zones of articular cartilage-the superficial zone, the middle zone, the deep zone, and the calcified zone (Figure 2).

Detailed explanation-3: -The epiphyseal growth plate consists of a layer of cartilage present only during the growth period and vanishes soon after puberty in long bones. It is divided to three well-defined zones, from epiphyses; resting, proliferative, and hypertrophic zones.

Detailed explanation-4: -The zone of calcified cartilage (ZCC) forms an important interface between cartilage and bone for transmitting force, attaching cartilage to bone, and limiting diffusion from bone to the deeper layers of cartilage.