This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cranial cavity, Subject name: Anatomy
Aery deep to Pterion? 
Select and explain. 
A. Frontal aery, B. Temporal aery, C. Middle meningeal aery, D. Parietal aery
C: Middle meningeal aery
Answer: C: Middle meningeal aery 
Explanation: The pterion is the region where the frontal, parietal, temporal, and sphenoid bones join together. It is located on the side of the skull, just behind the temple. Aery crossing behind it is Middle meningeal aery. Injury at this site can lead to EDH.