choanae

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choana

 [ko´ah-nah] (pl. cho´anae) (L.)
2. [pl.] the paired openings between the nasal cavity and the nasopharynx.

cho·a·nae

(kō'an-ē), [TA]
Plural of choana.

choanae

the internal nostrils which open into the roof of the mouth in all air-breathing vertebrates.