part of develops from skeleton of upper jaw pharyngeal arch 1 splanchnocranium subdivision of skeleton palatoquadrate arch EFO:0003659 upper pharyngeal jaw dorsal visceral arch 1 TAO:0001272 The dorsal portion of the first pharyngeal arch, comprising the upper jaw[ZFIN,VHOG]. upper pharyngeal jaw upper jaw ZFA:0001272 palatoquadrate arch dorsal visceral arch 1 dorsal pharyngeal arch 1 dorsal mandibular arch