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: Unknown
[{'content': 'Bezold-Jarisch reflexis apnea followed by rapid breathing, hypotension, and bradycardia and is produced by the receptors located in the \nSelect and explain. \nA. Lungs, B. Heart, C. Pluera, D. Brain', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Bezold-Jarisch reflex\nApnea followed by rapid breathing, hypotension, and bradycardia (the coronary chemoreflex or Bezold-Jarisch reflex).\nResponse is produced by receptors in the heart\nThe receptors are probably C fiber endings, and the afferents are vagal.\nIts physiologic role is uncertain, but in patients with myocardial infarcts, substances released from the infarcted tissue may stimulate ventricular receptors, contributing to the hypotension that is not infrequently a stubborn complication of this disease.', 'role': 'assistant'}]