<prompt> Pain from parietal pericardium is transmitted through?Cardiac plexusGreater splanchinc nerveIntercostal nerveVagus nerve  <response>: ANSWER: D Vagus nerveREF: Grays anatomy 39th edition page 996The pericardium is innervated by the vagus, together with phrenic nerves and the sympathetic trunks. Pericardial pain is typically a sharp severe substernal pain. It may be exacerbated by lying back or on the left side and relieved by leaning forward. It occasionally radiates to the upper border of trapezius. 