part of part of develops from develops from pharyngeal arch 2 hyoid arch skeleton pharyngeal arch 2 skeleton UBERON:0005884 XAO:0003177 AAO:0000665 A subdivision of skeleton that supports pharyngeal arch 2. AAO:0010370 ZFA:0001276 hyoid bars hyoid arch skeleton TAO:0001276 splanchnocranium subdivision of skeleton