choana


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choana

(ˈkəʊənə)
n
a nasal opening situated towards the back of the nasal cavity in vertebrates
References in periodicals archive ?
2,5,9,11) In birds, C gattii appears to cause localized disease, with lesions often isolated to the beak, sinus, choana, or retrobulbar space, whereas C rteoformans causes widely disseminated disease.
For nasopharyngeal sampling, we inserted a swab into the nostril past the choana and touched the wall of the nasopharynx.
Digital palpation of the nasopharynx was performed just before curettageto assess adenoid site, size, and degree of choanal occlusion, and then just after removal to determine whether there were any remnants and assess the opening of the posterior choana.
The telescope was navigated into the right nasal cavity, the choana reached and approx.
The enlarged antral polyp protrudes through the maxillary infundibulum or accessory ostium into the middle meatus and then the posterior choana, with possible extension into the posterior nasopharynx.
During its growth, it passes through the sinus ostium and extends into the nasal cavity and through choana, into the gullet [1].
There was a large soft tissue mass in the right pterygoid and infratemporal fossa shown in the T2 weighted MR image (A), extending into the right posterior nasal choana (white arrow in A), with central degenerative changes.
But happily for some specific details terms like torus tubarius, choana etc.
The vomer and palatine are wide bones, and together they form the medial and posterior border of the choana (Figs 2D, 6B).
La choana aparece en su superficie ventral localizada al extremo opuesto de la sutura con el palatino, hacia la zona occipital.
Blood, serum, and swabs from the choana (the opening between the nasal and oral cavity), and cloaca (vent) swabs are submitted at the same time to a diagnostic laboratory for different evaluations.
1) % in females; no postrictal tubercles; choanae small, round, not concealed by palatal shelf of maxillary arch; in females vomerine odontophores median and posterior to choanae, each smaller than a choana, oval, separated on midline by distance equal choana width, bearing 1 or 2 teeth, odontophores not apparent in males; posterior border of tongue with feeble notch, posterior 1/3-1/2 not adherent to floor of mouth; long vocal slits lateral to tongue; vocal sac large, subgular.