Diaphysis












Diaphysis

Structure of a Long Bone.png
A long bone, with diaphysis labeled at right.

Details
Pronunciation
/dˈæfɪsɪs/[1][2]
Part ofLong bones
Identifiers
MeSHD018483
TAA02.0.00.017
FMA24013

Anatomical terminology
[edit on Wikidata]

The diaphysis 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



See also


  • Metaphysis

  • Epiphysis


References




  1. ^ OED 2nd edition, 1989, as /dˈæfɪsɪs/.


  2. ^ Entry "diaphysis" in Merriam-Webster Online Dictionary.


  3. ^ Physical Medicine and Rehabilitation Board Review, Cuccurullo










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