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Medical Definition of Nomina Anatomica
1. The modification of the Basle Nomina Anatomica or BNA system of anatomical terminology adopted in 1955 by the International Congress of Anatomists in Paris, France. The International Anatomical Nomenclature Committee is responsible for continued revisions of the NA which are reviewed and adopted by the International Congress of Anatomists meeting at five-year intervals since 1950. (05 Mar 2000)