Biology:Diaphysis
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Short description: Shaft of a long bone, containing bone marrow
| Diaphysis | |
|---|---|
 A long bone, with the diaphysis labeled at right. | |
| Details | |
| Pronunciation | /daɪˈæfɪsɪs/ dy-AF-iss-iss[1][2] |
| Part of | Long bones |
| Anatomical terminology | |
The diaphysis (pl.: diaphyses) 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 sarcoma tends to occur at the diaphysis.[3]
Additional images
Long bone
See also
References
- ↑ OED 2nd edition, 1989.
- ↑ Entry "diaphysis" in Merriam-Webster Online Dictionary.
- ↑ Physical Medicine and Rehabilitation Board Review, Cuccurullo
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