This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Which of the following neurons predominantly fire during forceful expiration? \nSelect and explain. \nA. Dorsal group of neurons, B. Ventral group of neurons, C. Pneumotaxic center, D. Chemoreceptors', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ventral group of neurons fire, when forceful expiration is needed like heavy excercise.. Dorsal group of neurons control the normal inspiration and expiration. Pneumotaxic center limits the duration of inspiration. Respiratory centers Resoiratory Center Component Primary Function Pre-Botzinger complex Pacemaker cells of spontaneous or automatic breathing Dorsal Respiratory Group (DRG) Respiratory rhythm generator (inspiratory ramp signal) Ventral Respiratory group (VRG) Overdrive mechanism Pneumotaxic center Controls the &;Switch off&; point of inspiratory ramp signal Apneustic center Delays switch off signal-promotes inspiration Vagi Inhibits inspiratory discharge Ref: Guyton and Hall 13th edition Pgno: 540', 'role': 'assistant'}]