Meaning of choana | Babel Free

Definitions

1. A funnel; a funnel-shaped opening.
2. A pair of apertures towards the back of the nasal cavity, opening into the nasopharynx.

Equivalents

Examples

“Near-synonyms: infundibulum, pelvis, cornu”

“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.”

“Inside of this area it is possible to identify⟳ clearly two parallel echonegative zones, which belong⟳ to the nasal cavities (choanas) and are placed on both sides of a medial structure⟳, considerably echogenic, which corresponds to nasal bridge (Fig. 2.12.)”

“The bony rim of the posterior choana is located by passing the 4-mm microdebrider blade through the posterior ethmoids and into the nasopharynx. The tip⟳ of the microdebrider blade is pushed against the mucosa just above the bony choanae on the anterior face⟳ of the sphenoid.”

CEFR level