choana
Collocations
2ADJ.
mean
PREP.
in
Definitions
noun
A funnel; a funnel-shaped opening.
Near-synonyms: infundibulum, pelvis, cornu
A pair of apertures towards the back of the nasal cavity, opening into the nasopharynx.
The choanal glands of caecilians open at the margin of the choanae, whereas those of salamanders open deep within the choanae at the margin of the olfactory epithelium.
Zuckerkandl (1893) gives far and away the greatest measurements for the choanae; Hopmann (1895) reported that in man the choana has a mean height of 27 mm, and a mean width of 13 mm (Merkel, 1896); in women it measures 25 x 12mm. These values agree closely with our findings.
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3Near-synonyms: infundibulum, pelvis, cornu
WiktionaryThe choanal glands of caecilians open at the margin of the choanae, whereas those of salamanders open deep within the choanae at the margin of the olfactory epithelium.
WiktionaryZuckerkandl (1893) gives far and away the greatest measurements for the choanae; Hopmann (1895) reported that in man the choana has a mean height of 27 mm, and a mean width of 13 mm (Merkel, 1896); in
Wiktionary