What nerve supplies the posterosuperior part of the lateral wall of the nasal cavity?
Understand the Problem
The question is asking which specific nerve is responsible for supplying a particular area in the nasal cavity, specifically the posterosuperior part of the lateral wall. Knowledge of the anatomy and nerve supply of the nasal cavity is necessary to answer this question correctly.
Answer
Posterior superior lateral nasal nerves (branches of CN V2).
The posterior superior lateral nasal nerves, which are branches of the maxillary nerve (CN V2), supply the posterosuperior part of the lateral wall of the nasal cavity.
Answer for screen readers
The posterior superior lateral nasal nerves, which are branches of the maxillary nerve (CN V2), supply the posterosuperior part of the lateral wall of the nasal cavity.
More Information
The posterior superior lateral nasal nerves are involved in sensory innervation, which is important for functions such as detecting allergens or other irritants.
Tips
A common mistake would be confusing the posterior superior lateral nasal nerves with the nasopalatine nerve, which innervates different parts of the nasal cavity.
Sources
- Posterior superior nasal nerves | Radiology Reference Article - radiopaedia.org
- Anatomy, Head and Neck, Nasal Cavity - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
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