In angina pectoris, the pain radiating down the left arm is mediated by increased activity in afferent (sensory) fibres contained in the: (A) Carotid branch of the glossopharyngeal nerve, (B) Phrenic nerve, (C) Vagus nerve & recurrent laryngeal nerve, (D) Thoracic splanchnic nerve
Answer is D. D. i.e. Thoracic splanchnic nerves