Choanal
Choanal: Pertaining to the choana, the passageway from the back of one side of the nose to the throat. The choana is shaped like the opening of a train tunnel in a mountain which then opens into the space called the nasopharynx. The choanae must be open to permit breathing through the nose. Choanal atresia is blockage of the choanal passageway while choanal stenosis is narrowing of that passageway. From the Greek choane (a funnel). The word choanal is pronounced co-anal but it has nothing to do with the anus.
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- Choanal atresia
Choanal atresia: Blockage of the choana, the passageway from the back of one side of the nose to the throat. The choana is shaped like an inverted funnel which opens into the upper throat. There are two choanae. The choanae must be open to permit breathing through the nose. Choanal atresia can occur as an […]
- Choanal stenosis
Choanal stenosis: Abnormal narrowing of the choana, the passageway from the back of one side of the nose to the throat. The choana is shaped like the opening of a train tunnel in a mountain which then opens into the space called the nasopharynx. There are two choanae. The choanae must be open to permit […]
- Chocolate
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- Choking (object in airway)
Choking (object in airway): Partial or complete obstruction of the airway can be due to a foreign body (e.g., food, a bead, toy, etc.) The onset of respiratory distress may be sudden with cough. There is often agitation in the early stage of airway obstruction. The signs of respiratory distress include labored, ineffective breathing until […]
- Choking in children
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