This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Location of pyriformis fossa - 
Select and explain. 
A. Nasopharynx, B. Oropharynx, C. Laryngeal part of pharynx, D. None
C: Laryngeal part of pharynx
Answer: C: Laryngeal part of pharynx 
Explanation: Pyriformis fossa is part of hypopharynx (laryngopharynx or laryngeal part of pharynx).