Pacemaker regulating the rate of respiration is: (A) Pneumotaxic centre, (B) Nucleus tractus solitarius, (C) Apneustic centre, (D) Pre-Botzinger complex
Answer is D. Pre-Botzinger complex initiates the respiratory rhythm, consists of six group of neurons that functions as "central pattern generator " for initiation of respiration. Located in the ventrolateral medulla. Ref: Ganong 25th ed/page 655