choanan.
/ˈkəʊənə/ Anatomy.
A funnel-like opening; applied to the posterior nasal orifices in vertebrates.
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Schneiderian1746
naris1834
choana1878
postnaris1881
Jacobson's organ1888
osmoceptor1944
1878 A. Macalister Introd. Systematic Zool. & Morphol. Vertebr. Animals 13 The pair of maxillary lobes usually unite in the middle line, leaving behind them openings into the nasal cavities (choanæ).
1895 H. Bernard & M. Bernard tr. Wiedersheim Struct. Man 61 The choanæ of the Veddah's skull are..half a centimetre lower than in the European.
1958 J. M. Yoffey in W. J. Hamilton et al. Textbk. Human Anat. 407 The choanae are oval in shape, being about 1 inch high and ½ inch wide.
This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2019).
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