Diaphysis
(Redirected from Diaphyses)
Diaphysis is the main or mid section (shaft) of a long bone. It is made up of cortical bone and usually contains bone marrow and adipose tissue (fat).
Structure[edit | edit source]
The diaphysis is the tubular, hollow shaft of a long bone. It is made up of dense, compact bone, also known as cortical bone. This type of bone is strong and durable, providing support and structure to the body.
The diaphysis contains the medullary cavity, which is filled with yellow bone marrow in adults. This marrow is primarily made up of adipose tissue (fat), but also contains some red blood cells.
Function[edit | edit source]
The main function of the diaphysis is to support the weight of the body and withstand forces placed upon it. The cortical bone of the diaphysis is very strong and can resist bending and twisting forces.
The diaphysis also serves as a site for muscle attachment, allowing for movement. The surface of the diaphysis is covered in a thin layer of connective tissue called the periosteum. This tissue contains cells that can produce new bone tissue, allowing for growth and repair.
Clinical significance[edit | edit source]
Conditions that can affect the diaphysis include fractures, infections, and tumors. A fracture of the diaphysis can be a serious injury, as it can disrupt the function of the bone and potentially damage the bone marrow.
Infections of the bone, known as osteomyelitis, can also affect the diaphysis. These infections can cause pain, swelling, and a loss of function in the affected bone.
Tumors can also develop in the diaphysis. These can be benign (non-cancerous) or malignant (cancerous). Treatment for these conditions can include surgery, radiation therapy, and chemotherapy.
See also[edit | edit source]
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