出典:Wikipedia
出典:『Wikipedia』 (2011/06/06 21:28 UTC 版)
A nostril (or naris, pl. nares) is one of the two channels of the nose, from the point where they bifurcate to the external opening. In birds and mammals, they contain branched bones or cartilages called turbinates, whose function is to warm air on inhalation and remove moisture on exhalation. Fish do not breathe through their noses, but they do have two small holes used for smelling which may be called nostrils.
a nostril
the nostrils
the groin
the anus
a tooth
the area under the nose
しし鼻
the oral cavity
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