The metaphysis is the part of any long bone that is the growing area, just next to the growth plate. With maturity it turns into proper bone and the limb stops growing.

growth plate or physis
Cells in the metaphysis reproduce faster that in the epiphysis and the bone grows longer from there.
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Dr Sheila StroverĀ (Editor)
BSc (Hons), MB BCh, MBA

See biography...