choana
- noun
- /koʊˈɑːnə/
- Specialized
- Excess mucus can obstruct the choana, leading to difficulty in breathing through the nose.
Examples
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During the surgery, the doctor needed to clear the blockage in the patient's choana to restore normal breathing.
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The choana is an important anatomical feature because it connects the nasal cavity to the throat.
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PHOTO (BLACK & WHITE): Figure 4. Postoperative lateral x-ray showing large defect extending from nasal vestibule to choana.
Academic text (1996) -
Figure 1: A: Endoscopy shows the pedunculated mass (1 = posterior choana; 2 = prolapsed middle turbinate; 3 = nasal septum).
Academic text (2006)
Synonyms
One of the two openings at the back of the nose that leads to the throat
An opening at the back of the nose that leads into the upper throat
One of the two openings at the back of the nose that lead to the throat
Surface Forms
Etymology
The word choana comes from the Greek word choanē, which means 'funnel'. Think of each choana as a small funnel at the back of the nose that guides air into the throat, which is why the term names those openings.