This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Spinal injuries, Subject name: Orthopaedics
[{'content': "&;Whip-lash' injury is caused due to - \nSelect and explain. \nA. A fall from a height, B. Acute hyperextension of the spine, C. A blow on top to head, D. Acute hyperflexion of the spine", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Whiplash injury : acceleration injury , cervical sprain syndrome , soft tissue neck injury * it is an unconventional & inconsequential ligamentous injury of the cervical spine allegedly due to an extension injury following a rear end collision in an A * clinical features : symptoms - upper neck pain become worse with movement - occipital headache - neck stiffness - rarely veigo ,auditory or visual disturbance : sign - decreased range of movements - neck muscles spasm * investigation - x- ray usually normal .MRI helps to make diagnosis * treatment - conservative REF : MAHESWARI 9TH ED', 'role': 'assistant'}]