Bna --> basle nomina anatomica
The name adopted in 1895 in Basel, Switzerland (french spelling, Basle) by members of the german anatomical Society which met to compile a latin nomenclature of anatomical terms. Revisions of the resulting nomenclature were published at intervals until, in 1955 in paris, France, the international membership of the Congress of anatomists adopted a modification of the basle nomina anatomica terminology. That modification dropped the reference to the original meeting place.
See: nomina anatomica.