甲状舌管囊肿窦的窦道方向可延伸到A.扁桃体窝B.舟状窝C.盲孔D.咽隐窝E.胸腹膜裂孔

作者: rantiku 人气: - 评论: 0
问题 甲状舌管囊肿窦的窦道方向可延伸到
选项 A.扁桃体窝 B.舟状窝 C.盲孔 D.咽隐窝 E.胸腹膜裂孔
答案 C
解析 :胎儿发育到第3周时,在原口腔的底部发生甲状腺舌管,下行至颈部,甚至下端发生甲状腺,至第5周,甲状腺舌管即退化。而其口腔残留为舌根部的盲孔,甲状舌管窦为甲状腺舌管退化不全所致,窦道向上可延伸至盲孔,而不延伸至其他部位。
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