The structure indicated is the epiphyseal line. In adults, the epiphyseal plate is replaced with the epiphyseal line and marks the point of union were the epiphysis meets the diaphysis. The epiphyseal plates permit growth and lengthening of the bone, as the cartilage reproduces and ossifies.
What happens at the epiphyseal line?
The epiphyseal plate is the area of growth in a long bone. It is a layer of hyaline cartilage where ossification occurs in immature bones. On the epiphyseal side of the epiphyseal plate, cartilage is formed. On the diaphyseal side, cartilage is ossified, allowing the diaphysis to grow in length.
What is the function of epiphyseal lines?
Function. The epiphyseal line serves no function in the bone, being purely vestigial. However, it serves as an indicator of the boundary between the epiphysis and diaphysis.
What is the epiphyseal line quizlet?
Epiphyseal line. A thin layer of cartilage covering the part of the epihpysis where the bone forms a join with another bone. Articular cartilage. A tough connective tissue sheath that surrounds the bone surface where it is not covered by articular cartilage.
How does the epiphyseal line develop?
Development. Endochondral ossification is responsible for the initial bone development from cartilage in utero and infants and the longitudinal growth of long bones in the epiphyseal plate. These daughter cells stack facing the epiphysis while the older cells are pushed towards the diaphysis.
What is the function of collagen in bone tissue?
Collagen is the most abundant protein in the human body, found in the bones, muscles, skin, and tendons. It is the substance that holds the body together. Collagen forms a scaffold to provide strength and structure.
Which bone has epiphyseal line?
The epiphyseal plate (or epiphysial plate, physis, or growth plate) is a hyaline cartilage plate in the metaphysis at each end of a long bone….Histology.
| Epiphyseal plate zone (from epiphysis to diaphysis) | Description |
|---|---|
| Zone of reserve | Quiescent chondrocytes are found at the epiphyseal end |
What is the epiphyseal line plate?
Description. The epiphyseal plate (or epiphysial plate, physis, or growth plate) is a hyaline cartilage plate in the metaphysis at each end of a long bone. The plate is found in children and adolescents; in adults, who have stopped growing, the plate is replaced by an epiphyseal line.
What is the difference between epiphyseal plate and line?
What is the difference between an epiphyseal plate and an epiphyseal line? The Epiphyseal plate contains cartilage used for producing bone. The Epiphyseal line is formed after the epiphyseal plate has stopped producing bone).
Who has an epiphyseal line?
Anatomical Parts The epiphyseal plate (or epiphysial plate, physis, or growth plate) is a hyaline cartilage plate in the metaphysis at each end of a long bone. The plate is found in children and adolescents; in adults, who have stopped growing, the plate is replaced by an epiphyseal line.
What is the epiphyseal line made of?
hyaline cartilage
The epiphyseal plate is mostly composed of hyaline cartilage and is visible in radiographs of young animals as a radiolucent line between the epiphysis and the metaphysis2 (FIGURE 1). In mature animals, the epiphysis consists of cancellous bone surrounded by a thin layer of compact bone.
