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: ENT
All of the following aeries contributes to Little's area EXCEPT: 
Select and explain. 
A. Anterior Ethmoidal aery, B. Posterior Ethmoidal aery, C. Sphenopalatine aery, D. Greater palatine aery
B: Posterior Ethmoidal aery
Answer: B: Posterior Ethmoidal aery 
Explanation: Kiesselbach's plexus It lies in Kiesselbach's area/ Kiesselbach's triangle/ Little's area It is a region in the anteroinferior pa of the nasal septum where four aeries anastomose to form a vascular plexus of that name. The aeries are: - Anterior Ethmoidal aery (from the Ophthalmic aery) - Sphenopalatine aery (terminal branch of the Maxillary aery) - Greater palatine aery (from the Maxillary aery) Septal branch of the superior labial aery (from the Facial aery) Although the Posterior Ethmoidal aery also supplies the septum of the nose, it does not contribute to the plexus.