One of the following structure is intact in closed head injury?: (A) Scalp, (B) Skull, (C) Dura mater, (D) Arachnoid mater
Answer is C. 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