part_of part of part of has part has part has_part overlaps overlaps only in taxon only_in_taxon capable of capable of skeleton of connected anatomical structure chewing Gnathostomata <vertebrates> jaw skeleton Skeletal and cartilage elements of the first pharyngeal arch.[TAO] oral jaw skeleton EMAPA:35455 NCIT:C48821 galen:Jaw FMA:54396 jaw AAO:0000988 mandibular arch skeleton visceral arch 1 GAID:214 jaws ZFA:0001227 BTO:0001749 jaw cartilage mandibular arch UMLS:C0022359 SCTID:181811001 MA:0001905 Wikipedia:Jaw OpenCyc:Mx4rvVjjEZwpEbGdrcN5Y29ycA MESH:D007568 pharyngeal arch 1 skeleton uberon Subdivision of skeleton which includes upper and lower jaw skeletons. TAO:0001227 There are cellular contributions from all three embryonic germ layers: pharyngeal mesoderm, endoderm and neural crest that migrates out of the ectoderm (Noden, 1983). in FMA, the jaw is an organism subdivision cluster, and includes mucosal tissue such as the gingiva as parts. It appears to be skeletal in MA (and has teeth as parts). It is reasonable to assume that ZFA and XAO consider the upper and lower jaws to be skeletal elements or clusters. EHDAA2 also considers these clusters. TODO - follow EHDAA2 model. These arbitrary differences in terminology and classification have to be reconciled with the genuine well-known biological differences in the skeletal elements across vertebrates UBERON:0001708 anterior splanchnocranium TODO - move ZFA:0001227 (it is the entire jaw skeleton). splanchnocranium neural crest-derived structure subdivision of skeleton facial skeleton jaw region