part of part of has skeleton organism subdivision upper jaw region http://upload.wikimedia.org/wikipedia/commons/a/a7/Gray189.png AAO:0000620 alveolodental arch of bimaxilla dorsal mandibular arch dorsal pharyngeal arch 1 UBERON:0001709 maxillary part of mouth proper See notes for jaw w.r.t skeletal element vs subdivision of head. upper pharyngeal jaws Subdivision of head that consists of the upper jaw skeletal elements plus associated soft tissue (skin, lips, muscle)[cjm]. Note isa/partof difference MA/FMA EHDAA2:0002118 EHDAA2:0004607 SCTID:362636001 maxillary part of mouth palatoquadrate arch Wikipedia:Upper_jaw Superior maxillary arch located on the anterior and lateral sides of the skull.[AAO] Subsequent vertebrate evolution has also involved major alterations to the pharynx; perhaps the most notable occurred with the evolution of the gnathostomes. This involved substantial modifications to the most anterior pharyngeal segments, with the jaw forming from the first, anterior, pharyngeal segment, while the second formed its supporting apparatus, the hyoid.[well established][VHOG] ncithesaurus:Upper_Jaw VHOG:0000454 EHDAA:8025 EMAPA:17924 FMA:59399 lower jaw region skeleton of upper jaw midface jaw region