Veterinary Technician

Category - Dentistry

"Oronasal Fistula" is a term used to describe which of the following conditions?
  1. An opening between the esophagus and trachea
  2. An opening between the anal gland and the rectum
  3. An opening between a tear duct and the nasal cavity
  4. An opening between the mouth and the nasal cavity
Explanation
Answer: D - An opening between the mouth and the nasal cavity is an "oronasal fistula." It is commonly caused by an infection of the upper teeth.
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