Diaphysis
| Diaphysis | |
|---|---|
 A long bone, with diaphysis labeled at right. | |
| Identifiers | |
| MeSH | A02.835.232.169 |
| TA | A02.0.00.017 |
| FMA | 24013 |
The diaphysis (/daɪˈæfᵻsᵻs/[1][2]) 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. In diaphysis, primary ossification occurs.
Ewing's sarcoma tends to occur at the diaphysis.[3]
Additional images
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Long bone
See also
References
- ↑ OED 2nd edition, 1989, as /daɪˈæfɪsɪs/.
- ↑ Entry "diaphysis" in Merriam-Webster Online Dictionary.
- ↑ Physical Medicine and Rehabilitation Board Review, Cuccurullo
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