Diaphysis

Diaphysis
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The 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).

An aggressive form of childhood bone cancer, Ewing's sarcoma, usually occurs in the diaphysis.

Additional images

Long bone

v • d • e Musculoskeletal system, connective tissue: bone and cartilage

Cartilage	perichondrium, fibrocartilage callus, metaphysis cells (chondroblast, chondrocyte) types (hyaline, elastic, fibrous)

Bone	ossification (intramembranous, endochondral, epiphyseal plate) cycle (osteoblast, osteoid, osteocyte, osteoclast) types (cancellous, cortical) regions (epiphysis, metaphysis, diaphysis) structure (osteon / Haversian system, Haversian canals, Volkmann's canals, endosteum, periosteum, Sharpey's fibres, enthesis, lacunae, canaliculi, trabeculae, medullary cavity, bone marrow) shapes (long, short, flat, irregular, sesamoid)