True regarding respiratory centre: (A) Directly simulated by fall in PaO2, (B) Connected with cardiac center, (C) Inhibited during swallowing, (D) Situated in midbrain
Answer is B. The respiratory center is located in the medulla oblongata and is involved in the minute-to-minute control of breathing. Unlike the cardiac system, respiratory rhythm is not produced by a homogeneous population of pacemaker cells Ref: guyton and hall textbook of medical physiology 12 edition page number: 371,372,373