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choana2

tissue_organ_import: 
choana
Clinical description: 
On the roof of the oropharynx is a fissure, called the choana, which opens into the nasal cavity. Inspect the area around the choana for ulcers. The choana is also a good place to find respiratory exudate. Birds do not form liquid pus and inspusated exudate tends to accumulate in the choanal orifice. If exudate is present, you can collect a swab sample from the choana. The choana is surrounded by ridges and rows of sharp well-demarcated papillae that point caudally. A variety of diseases can damage the papillae, resulting in blunting.
Record number: 
10244
Case number: 
Unknown
Age: 
6 weeks
Breed: 
White Leghorn
Clinical form: 
Unknown
Infection type: 
Unknown
Housing/mgmnt type: 
Select One
Priority: 
1
Rights: 
© Cornell University
Etiology: 
Tissues and organs: 
Asset type: 
Image: