EPIPHYSEAL PLATE – 3
In a longitudinal section of the epiphyseal plate (growth plate), five distinct zones of cells can be identified. Although the epiphyseal plate is a plate-shaped structure in the bone, its individual zones appear as successive bands in a longitudinal section.
Since the cartilage cells undergo subtle transitions from each zone to the next, the boundaries between the zones are not always very precise.
Zones of the epiphyseal disk:
Resting Zone
Proliferation Zone
Hypertrophic Zone
Calcification Zone
Ossification Zone
The first four zones consist of cartilaginous tissue and the last zone of newly produced bone tissue.
Zones of the Epiphyseal disc seen in a longitudinal section of the bone. Staining: HE. Magnification: small.
