IE users: please get the latest browser version at Microsoft Internet Explorer Home Page
if yot already have the latest browser version please verify that your browser settings is not in compatibility mode
The frontonasal process is the midline unpaired embryonic structure that develops into the forehead. It is situated between the telencephalon, the stomodeum and the nasal pits.
The DPC stages are refered to the anteriormost cranial neural crest migration to this anatomical site.