This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen: Miscellaneous, Subject name: Anatomy
Posterior superior alveolar aery is a branch of: 
Select and explain. 
A. Nasal branch of maxillary aery, B. Palatal branch of maxillary aery, C. Mandibular aery, D. Inferior alveolar aery
B: Palatal branch of maxillary aery
Answer: B: Palatal branch of maxillary aery 
Explanation: Posterior superior alveolar aery arises from third pa of maxillary aery just before it enters the pterygomaxillary fissure. BRANCHES OF MAXILLARY AERY