Developmentoffaceandneckisrelatedtotheformationofthebranchialapparatusandfrontonasalprocessinthefourthandfifthweeksofembryonicdevelopment.Thebranchialapparatusconsistsofbranchialarches,branchialgrooves,branchialmembranes,andpharyngealpouches.Inhuman,thefi (共 1525 字) [阅读本文] >>


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