What is metaphysis and epiphysis?
The central tubular region of the bone, called the diaphysis, flares outward near the end to form the metaphysis, which contains a largely cancellous, or spongy, interior. At the end of the bone is the epiphysis, which in young people is separated from the metaphysis by the physis, or growth plate.
What is the metaphysis of the bone?
The metaphysis is the region where the epiphysis joins the diaphysis; in a growing bone this corresponds to the calcified layer of the epiphyseal plate together with the interdigitating bone (see Figure 4.19). The interface between the hypertrophic and calcified layers is sometimes referred to as the tidemark.
Is the metaphysis part of the epiphysis?
The metaphysis is the neck portion of a long bone between the epiphysis and the diaphysis. It contains the growth plate, the part of the bone that grows during childhood, and as it grows it ossifies near the diaphysis and the epiphyses.
What is the epiphysis of a bone?
epiphysis, expanded end of the long bones in animals, which ossifies separately from the bone shaft but becomes fixed to the shaft when full growth is attained. The epiphysis is made of spongy cancellous bone covered by a thin layer of compact bone.
What is the function of the epiphysis?
The epiphysis is the terminal end of the long bone that is typically responsible for articulation. It is also the primary source of red bone marrow in long bones, which allows erythropoiesis.
What is intracapsular metaphysis?
Some metaphyses such as the proximal femur and the proximal radius are intracapsular. This anatomy allows an infection to spread directly from the affected metaphysis into the adjacent joint space. In other joints, such as the knee, the infection invades the joint only after it affects the epiphysis.
What is the difference between diaphysis epiphysis and metaphysis?
Epiphysis is the rounded end of a long bone. Its main function is to form joints with adjacent bones. The other prominent region of the long bone is diaphysis, which is its shaft. In between epiphysis and diaphysis, there is another part of the long bone; we call this metaphysis.
Where is metaphysis found?
long bones
The metaphyses (singular: metaphysis) are the wide portions of long bones and the regions of the bone where growth occurs. Growth occurs at the section of the metaphysis that is adjacent to the growth plate (physis). The metaphysis is located between the diaphysis and epiphysis.
What is the role of the epiphysis?
Epiphysis Definition – Epiphysis is the rounded end of a long bone, its primary function is to connect adjacent bones to form joints.
Is epiphysis distal or proximal?
The proximal epiphysis is the end of the long bone closest to the center of the body. The distal epiphysis is located at the end of the long bone that is farther away from the center of the body.
What is epiphysis filled with?
The epiphyses, which are wider sections at each end of a long bone, are filled with spongy bone and red marrow. The epiphyseal plate, a layer of hyaline cartilage, is replaced by osseous tissue as the organ grows in length.
What is the difference between epiphysis diaphysis and metaphysis?
Is the compact or spongy bone located in the epiphysis?
The epiphysis is made of spongy cancellous bone covered by a thin layer of compact bone. It is connected to the bone shaft by the epiphyseal cartilage, or growth plate, which aids in the growth of bone length and is eventually replaced by bone.
Which bone is above the temporal bone?
The tympanic antrum is bounded above by a thin plate of bone, the tegmen tympani, which separates it from the middle fossa of the base of the skull; below by the mastoid process; laterally by the squama just below the temporal line, and medially by the lateral semicircular canal of the internal ear which projects into its cavity.
Is compact bone located in the diaphysis or the epiphysis?
The diaphysis is the shaft of the bone. Deep in the diaphysis is the cortical bone, which is also called compact bone and makes up the bulk of it. This cortical bone is much denser and stronger than spongy bone. The cortical bone plays a major role in the body as a storage site for certain minerals, particularly calcium and phosphorous.
Which bone is between femur and tibia?
The knee joint is where the tibia and femur meet. Running parallel to the tibia is the fibula, the thinner and weaker bone of the lower leg. It is also known as the calf bone, as it sits slightly…