noun (plural diaphyses /dʌɪˈafɪsiːz/)Anatomy
The shaft or central part of a long bone. Compare with epiphysis.
- Interposed between the epiphysis and the diaphysis is the cartilaginous epiphyseal plate.
- The tumor is eccentric, usually metaphyseal, but it may extend into the epiphysis or along the medullary cavity into the diaphysis.
- The forces of the two opposing groups of muscles result in twisting of the epiphysis and the diaphysis in opposite directions.
Mid 19th century: from Greek diaphusis 'growing through', from dia 'through' + phusis 'growth'.
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