choana


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Related to choana: antrochoanal polyp, Torus tubarius

choana

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

cho·a·na

, pl.

cho·a·nae

(kō'an-ă, kō'an-ē), Avoid the mispronunciation choa'na. Avoid the redundant phrase posterior choana(e).
The right or left opening from the nasal cavity into the nasopharynx.
[Mod. L. fr. G. choanē, a funnel]

choana

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

choana

[kō′ənə] pl. choanae
1 a funnel-shaped channel.
2 See posterior nares.

cho·a·na

, pl. choanae (kō'ă-nă, -nē)
The opening into the nasopharynx of the nasal cavity on either side. usage note Often incorrectly called posterior choana(e).
[Mod. L. fr. G. choanē, a funnel]

choana

A funnel-shaped opening, especially one of the internal openings of the nose into the PHARYNX.

cho·a·na

, pl. choanae (kō'ă-nă, -nē)
The right or left opening from the nasal cavity into the nasopharynx.
Synonym(s): apertura nasalis posterior.
[Mod. L. fr. G. choanē, a funnel]

choana

pl. choanae [L.]
1. any funnel-shaped cavity or infundibulum.
2. choanae, the paired openings between the nasal cavity and the nasopharynx.
References in periodicals archive ?
Choanal polyps are benign, relatively uncommon mucous growths that by definition protrude through the choana.
Antrochoanal polyps exit through the maxillary ostium and pass between the middle turbinate and the lateral nasal wall to reach the choana.
A sphenochoanal polyp begins within the sphenoid sinus and extends through an enlarged sphenoid ostium into the sphenoethmoidal recess and from there into the choana.
The owner also reported frequent coughing episodes, presumed to be secondary to increased discharge from the choana into the oral cavity.
A thick, viscous, mucinous, white material was present at the opening of the choana, partially obstructing the airway.
The lesion had arisen from the mucosa of the left eustachian tube orifice, and it extended into the left choana and barely crossed the midline.
In 5 birds from each group, a swab was touched to the conjunctiva, choana, and cloaca of each bird and tested for C psittaci DNA by a commercial laboratory (Chlamydophila psittaci polymerase chain reaction test, Infectious Disease Laboratory, College of Veterinary Medicine, University of Georgia, Athens, GA, USA).
Examination in our ENT department revealed the presence of a nonlobulated left intranasal mass that had obliterated the choana.
The lesion protruded from a fracture of the posterior cribriform plate, and it blocked an otherwise patent choana.