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
Woodruff's area is located at ? 
Select and explain. 
A. Antero-inferior pa of nasal septum, B. Posteroinferior pa of nasal septum, C. Superior pa of nasal septum, D. Posteroinferior pa of lateral nasal wall
D: Posteroinferior pa of lateral nasal wall
Answer: D: Posteroinferior pa of lateral nasal wall 
Explanation: Posteriorly on the lateral nasal wall is the area known as Woodruff's area. It is situated under the posterior end of inferior turbinate.Sphenopalatine aery anastomoses with posterior pharyngeal aery, in this area.