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).
Diaphysis | |
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A long bone, with the diaphysis labeled at right. | |
Details | |
Pronunciation | /daɪˈæfɪsɪs/ dy-AF-iss-iss[1][2] |
Part of | Long bones |
Identifiers | |
MeSH | D018483 |
TA98 | A02.0.00.017 |
TA2 | 391 |
FMA | 24013 |
Anatomical terminology |
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
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Long bone
See also
editReferences
edit- ^ OED 2nd edition, 1989.
- ^ Entry "diaphysis" in Merriam-Webster Online Dictionary.
- ^ Physical Medicine and Rehabilitation Board Review, Cuccurullo