Zones of Metaphysis

5 zones of the Metaphysis

-zone of reserve cartilage -zone of cell proliferation -zone of cell hypertrophy -zone of calcification -zone of bone deposition

zone of bone deposition

breakdown of lacuna walls, leaving open channels; death of chondrocytes; bone deposition by osteoblasts, forming trabeculae of spongy bone

zone of cell hypertrophy

cessation of mitosis; enlargement of chondrocytes and thinning of lacuna walls

zone of cell proliferation

chondrocytes multiplying and lining up in rows of small flattened lacunae

Metaphysis

hyaline cartilage turns into transitional bone; also called the transition zone

zone of calcification

temporary calcification of cartilage matrix between columns of lacunae

zone of reserve cartilage

typical histology of resting hyaline cartilage