This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanical injuries, Subject name: Forensic Medicine
One of the following structure is intact in closed head injury? 
Select and explain. 
A. Scalp, B. Skull, C. Dura mater, D. Arachnoid mater
C: Dura mater
Answer: C: Dura mater 
Explanation: Closed head injury (non-penetrating): Damage to the brain without any fracture of the skull and/or penetration of dura; most often results from blunt trauma. Ref - Krishan Vij textbook of forensic medicine and toxicology 5e pg : 281,284