The growth plate anatomy and disorders Biology Diagrams The epiphyseal plate, epiphysial plate, physis, or growth plate is a hyaline cartilage plate in the metaphysis at each end of a long bone.It is the part of a long bone where new bone growth takes place; that is, the whole bone is alive, with maintenance remodeling throughout its existing bone tissue, but the growth plate is the place where the long bone grows longer (adds length).
Growth Plate Anatomy - See: - Enchondral Ossification - Limb Development - Growth Deformities of the Limbs - Pediatric Bone Circulation - Physeal Bone Bridge - Salter Harris Classification - Undifferentiated or Resting Cartilage Cells: - immediately adjacent to epiphysis are irregularly scattered cartilage cells, called the resting cell zone; Longitudinal growth of the skeleton is a result of endochondral ossification that occurs at the growth plate. Through a sequential process of cell proliferation, extracellular matrix synthesis, cellular hypertrophy, matrix mineralization, vascular invasion, and eventually apoptosis, the cartilage model is continually replaced by bone as length increases. The growth plate is a key component of developing bones. The growth plate, or physis, is a highly ordered structure and is composed of discrete layers. Each layer has a specific function that contributes to the growing bone. The anatomy and disorders of the growth plate is also a common basic science viva topic in the FRCS examination. The
The growth plate: anatomy and disorders Biology Diagrams
evaluation of osseous bars across the growth plate. โข However, with advancement of MRI technology and sequences, this methodology can also demonstrate physeal anatomy and growth plate pathology very well. โข Both CT and MRI can be used to map the percentage of total amount of growth plate involved in the injury and the subsequent disturbance
The growth plate is the cartilaginous portion of long bones where the longitudinal growth of the bone takes place. This figure is licensed under the Creative Commons Attribution-Share Alike 4.0 International license from Anatomy & Physiology, Connexions Web site. Ultrastructural localization of collagen types II, IX, and XI in the
Location, Structure (Diagram) & Function Biology Diagrams
Longitudinal growth of the skeleton is a result of endochondral ossification that occurs at the growth plate. Through a sequential process of cell proliferation, extracellular matrix synthesis, cellular hypertrophy, matrix mineralization, vascular invasion, and eventually apoptosis, the cartilage model is continually replaced by bone as length increases. Function. The main function of the epiphyseal plate is to allow for growth and development of long bones in children and adolescents. [5] It does this through the process of endochondral ossification, in which chondrocytes in the proliferative zone actively divide and produce new cartilage tissue. [4] This tissue is then replaced by bone tissue as the chondrocytes in the degenerative zone die Human Anatomy & Physiology (11th ed.). Pearson. ISBN 978-0134760239. Hall, J. E. (2020). Guyton and Hall Textbook of Medical Physiology (14th ed.). Elsevier. The epiphyseal plate, also known as the growth plate or physis, is a hyaline cartilage plate located at the ends of long bones in children and adolescents. It is the site where new
