second pharyngeal arch


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Related to second pharyngeal arch: hyoid arch, First pharyngeal arch

second pharyngeal arch

the second visceral, or branchial, arch; the second postoral arch in the branchial arch series.
Synonym(s): hyoid arch
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The mesenchymal cells that surround the crypts arise from materials of second pharyngeal arch. Developmental abnormality leading to formation of cartilage and bone within tonsil can result in osteo-cartilaginous choristoma of tonsil.
Osteo-cartilagious choristoma of tonsil

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