Nikolas
Created page with "== Learning objectives == * What are the pharyngeal arches? * What are the derivatives of the first pharyngeal arch? * What are the derivatives of the second pharyngeal arch? * What are the derivatives of the third pharyngeal arch? * What are the derivatives of the fourth pharyngeal arch? * What are the derivatives of the sixth pharyngeal arch? * What are the first arch syndromes? == Pharyngeal arches == During the fourth week the ''pharyngeal apparatus'' develops. The..."