Choanal: Pertaining to 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. 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.
Choanal: Pertaining to 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 ...
Choanal atresia is a narrowing or blockage of the nasal airway by tissue. It is a congenital condition, meaning it is present at birth. Causes The cause of ...
Pertaining to or arising from the choanae. c. atresia — see imperforate buccopharyngeal membrane. c. slit — the sagittal slit in the hard palate of the normal ...
choanal pertaining to or arising from the choanae. choanal atresia see imperforate buccopharyngeal membrane. choanal slit the sagittal slit in the hard palate of the ...
Complete nasal obstruction in a newborn may cause death from asphyxia.