What is the epiphysis and its function?
Epiphysis Definition – Epiphysis is the rounded end of a long bone, its primary function is to connect adjacent bones to form joints. The diaphysis, or shaft, of the long bone, is another prominent feature. There is another part of the long bone between the epiphysis and the diaphysis, which we call metaphysics.
Where is epiphysis of the bone?
Skeletal System The epiphysis lies between the growth plate (physis) and the joint at the end of the bone (Figure 8). In mice and humans, most tubular bones develop an epiphysis at both ends. Some bones, such as the phalanges and the metacarpal and metatarsal bones, ordinarily form this structure at one end only.
What is the medical definition for epiphysis?
1 : a part or process of a bone that ossifies separately and later becomes ankylosed to the main part of the bone especially : an end of a long bone.
What is epiphysis and diaphysis?
The main difference between epiphysis and diaphysis is that epiphysis is the rounded end of a long bone, at its joint with adjacent bone(s), whereas diaphysis is the main or midsection (shaft) of a long bone. Furthermore, epiphysis is made up of spongy bone while diaphysis is made up of cortical bone.
Why is the epiphysis important?
The epiphysis is the area of the long bone where bone growth takes place. Long bones actually grow from the inside out. When the bones need to grow, they grow from the epiphyseal plate and push new bone outward. When the bone is done growing, the epiphyseal plate stops creating cells.
What is an example of an epiphysis?
Pressure epiphysis: The region of the long bone that forms the joint is a pressure epiphysis (e.g. the head of the femur, part of the hip joint complex). Examples of traction epiphyses are tubercles of the humerus (greater tubercle and lesser tubercle), and trochanters of the femur (greater and lesser).
What does cartilage do to bones?
Hyaline, or articular, cartilage covers the ends of bones to create a low-friction environment and cushion at the joint surface. When cartilage in the joint is healthy, it effectively allows fluid bending/straightening motions and protects the joint against weight-bearing stresses.
What is the difference between the epiphysis and diaphysis of the bone?
A long bone has two parts: the diaphysis and the epiphysis. The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The wider section at each end of the bone is called the epiphysis (plural = epiphyses), which is filled with spongy bone.
What describes a diaphysis?
The diaphysis is the main or midsection (shaft) of a long bone. It is made up of cortical bone and usually contains bone marrow and adipose tissue (fat). It is a middle tubular part composed of compact bone which surrounds a central marrow cavity which contains red or yellow marrow.
Do all bones have epiphysis?
At the joint, the epiphysis is covered with articular cartilage; below that covering is a zone similar to the epiphyseal plate, known as subchondral bone. The epiphysis is filled with red bone marrow, which produces erythrocytes (red blood cells)….
| Epiphysis | |
|---|---|
| Part of | Long bones |
| Identifiers | |
| MeSH | D004838 |
| TA98 | A02.0.00.018 |
What are the 4 types of epiphysis?
Types of Epiphysis
- Pressure epiphysis: o Is present at the ends of the long bone. o Is articular in nature (involved in formation of joints).
- Traction epiphysis: o Is produced due to the pull of the muscle and therefore provide attachment to the muscle/s. o Is non-articular.
- Atavistic epiphysis: •
- Aberrant epiphysis: •