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Preferred Label : palatoquadrate arch;

Uberon definition : The dorsal portion of the first pharyngeal arch, comprising the upper jaw[ZFIN,VHOG].;

Uberon synonym : upper pharyngeal jaw; dorsal visceral arch 1;

Uberon related term : dorsal visceral arch 1; dorsal mandibular arch; palatoquadrate arch; upper pharyngeal jaw; upper jaw; dorsal pharyngeal arch 1;

Uberon Homology note : 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];

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The dorsal portion of the first pharyngeal arch, comprising the upper jaw[ZFIN,VHOG].

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27/07/2025


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