Air traffic control at domestic airports in many regions do communicate with pilots in the local language (even if they're are all able to switch to English at a moment's notice).
It's all just jargon, for those of us working in the field it's really not difficult to both know the international Latin medical terms and the local terms to use with patients or colleagues.
It's all just jargon, for those of us working in the field it's really not difficult to both know the international Latin medical terms and the local terms to use with patients or colleagues.