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
Structures passing through foramen spinosum is: 
Select and explain. 
A. Accessory meningeal artery, B. Middle meningeal artery, C. Mandibular nerve, D. Maxillary nerve
B: Middle meningeal artery
Answer: B: Middle meningeal artery 
Explanation: The foramen spinosum is situated posterolateral to foramen ovale in the lateral part of middle cranial fossa.
Structures passing through the foramen spinosum:

Middle meningeal artery.
Meningeal branch of mandibular nerve or Nervus spinosus.
Middle meningeal vein - posterior trunk.