- Zone of Reserve Cartilage (RC). ...
- Zone of Proliferating Cartilage (PC). ...
- Zone of Hypertrophic Cartilage (HC). ...
- Zone of Calcified Cartilage (CC). ...
- Zone of Ossification (Resorption)(OSS).
What are the zones of the epiphyseal growth plate?
The growth plate. The chondrocytes in the growth plates are surrounded by matrix consisting of proteoglycan aggregates and are divided into three zones, reserve/resting zone, proliferative zone and hypertrophic zone .
What are the 5 zones of the epiphyseal plate?
- Zone of Reserve Cartilage (RC). ...
- Zone of Proliferating Cartilage (PC). ...
- Zone of Hypertrophic Cartilage (HC). ...
- Zone of Calcified Cartilage (CC). ...
- Zone of Ossification (Resorption)(OSS).
What are the five zones in epiphyseal cartilage during bone formation?
A secondary ossification center has developed into a bony epiphysis. Enlargement of the epiphysis occurs by growth of the articular cartilage. Again, observe the zones of reserve cells, proliferation, maturation, hypertrophy, calcification, ossification and resorption .
What are the zones in the epiphyseal plate quizlet?
- Name all of the zones of the epiphyseal plate. Resting cartilage, proliferation, hypertrophy, calcification, ossification.
- function of the epiphyseal plate. ...
- Zone of resting cartilage. ...
- Zone of Proliferation. ...
- Zone of hypertrophy. ...
- hypertrophy. ...
- Zone of calcification. ...
- Zone of ossification.
Is the zone of resting cartilage?
Zone of reserve (“resting”) cartilage (unmodified hyaline). 2. Zone of proliferating cartilage . . . clusters (cell nests) of chondrocytes undergo successive mitotic divisions to form columns of cells separated by deeply staining matrix.
At what age do growth plates close?
Growth plates usually close near the end of puberty. For girls, this usually is when they’re 13–15; for boys, it’s when they’re 15–17 .
What is the epiphyseal growth plate?
The epiphyseal growth plate is the main site of longitudinal growth of the long bones . At this site, cartilage is formed by the proliferation and hypertrophy of cells and synthesis of the typical extracellular matrix. The formed cartilage is then calcified, degraded, and replaced by osseous tissue.
How the epiphyseal plate grows?
Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification . The cartilage in the region of the epiphyseal plate next to the epiphysis continues to grow by mitosis. The chondrocytes, in the region next to the diaphysis, age and degenerate.
Is the growth plate in the epiphysis?
Growth plates are located between the widened part of the shaft of the bone (metaphysis) and the end of the bone (epiphysis).
What are the four zones of cartilage?
The four zones of hyaline cartilage include the superficial tangential zone, the middle zone, the deep zone, and the calcified zone [26]. The superficial zone is found directly below the articular surface, which is in direct contact with the synovial fluid.
What occurs in the zone of resting cartilage?
Our findings suggest that resting zone cartilage makes important contributions to endochondral bone formation at the growth plate: 1) the resting zone contains stem-like cells that give rise to clones of proliferative chondrocytes; 2) the resting zone produces a GPOF, a morphogen that directs the alignment of the ...
What zone of the epiphyseal plate is located the farthest from the marrow space?
Cartilage to Bone
Zone of reserve cartilage : This region is farthest from the marrow cavity and consists of hyaline cartilage that does not actively transform into bone. Quiescent chondrocytes are found here.
What happens when the epiphyseal plate is ossified quizlet?
Chondrocyte replication and hypertrophy resulted in interstitial cartilage growth, interstitial cartilage growth increases the length of the bone, Ossification of calcified cartilage produces additional bone on the diaphyseal side of the epiphyseal plate, and thickness of epiphyseal plate remains unchanged because the ...
Which zone of the epiphyseal plate is closest to the diaphysis?
The reserve zone is the region closest to the epiphyseal end of the plate and contains small chondrocytes within the matrix.
What is atavistic epiphysis?
Atavistic epiphysis: A bone that is independent phylogenetically but is now fused with another bone . These types of fused bones are called atavistic, e.g., the coracoid process of the scapula, which has been fused in humans, but is separate in four-legged animals.
