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
Whiplash injury of spine is due to 
Select and explain. 
A. Hyperflexion, B. Hyperextension, C. Rotation, D. Side ward traction
B: Hyperextension
Answer: B: Hyperextension 
Explanation: Whiplash injury This injury classically occurs in an occupant of a vehicle due to sudden acceleration which causes sudden extension followed by flexion. There may be fracture dislocation of cervical veebrae. Both accrleaccele and deceleration injuries are included in the category of whiplash injury. Hyperextension injuries are common. Whiplash injuries are common in front seat occupants. Ref: FORENSIC MEDICINE AND TOXICOLOGY DR PC IGNATIUS THIRD EDITION PAGE 178