当肋骨间的肌肉和膈肌舒张时，气体经过的途径是_刷题宝

题干

当肋骨间的肌肉和膈肌舒张时，气体经过的途径是（）

A：外界气体→食管→肺

B：肺→支气管→气管→口腔→外界

C：外界气体→鼻→咽→喉→气管→支气管→肺

D：肺→支气管→气管→喉→咽→鼻腔→外界

上一题下一题 0.0难度选择题更新时间:2018-10-17 12:49:04

答案(点此获取答案解析）

D

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