第一章口腔颌面部发育鼻凹nasalpit鼻板nasalplacode鼻腭管naso-palatalcanal鼻鳍nasalfin侧腭突lateralpalatalprocess,也称继发腭(secondpalate),腭突(palatineshelf)第一鳃弓软骨Meckelscartilage额鼻突frontonasalprocess腭裂cleftpalate分叉舌bifidtongue,也称舌裂(clefttongue,splittongue)颌裂cleftjaw继发腭secondarypalate颊咽膜orapharyngealmembrane甲状舌管thyroglossalduct界沟sulcusterminalis颈窦cervicalsinus口凹oralpit口咽膜orapharyngealmembrane拉特克囊Rathkespouch,也称神经颊囊(craniobuccalpouch),颅颊囊(craniopharyngealpouch)联合merge联合突copula面裂facialcleft模式发育patterning奇结节t