This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
The commonest site of fracture in Base of Skull? 
Select and explain. 
A. Anterior Cranial fossa, B. Middle cranial fossa, C. Posterior cranial fossa, D. Lateral cranial fossa
B: Middle cranial fossa
Answer: B: Middle cranial fossa 
Explanation: The common sites of fracture in the skull are:(a) The parietal area of the vault.(b) The middle cranial fossa of the base. This fossa is weakened by numerous foramina and canals.The facial bones commonly fractured are: (a) The nasal bone and (b) the mandible.Some clinical features of petrous temporal bone fractureBattle signCSF otorrheaotorrhagia