This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'After an accident a teenager developed a different breathing pattern. After neurological evaluation, transection at mid pons level is diagnosed. This lesion will result in: \nSelect and explain. \nA. Asphyxia, B. Hyperventilation, C. Rapid and shallow breathing, D. Apneusis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: If the brainstem is transected in the midpons, a breathing pattern called apneusis results if the vagus nerves have also been transected. Apneustic breathing consists of prolonged inspiratory effos interrupted by occasional expirations. Apneusis is probably caused by a sustained discharge of medullary inspiratory neurons. Ref: Levitzky M.G. (2007). Chapter 9. The Control of Breathing. In M.G. Levitzky (Ed), Pulmonary Physiology, 7e.', 'role': 'assistant'}]