<prompt> Which of the following is not a tributary of azygos vein?Right posterior intercostalRight superior intercostalLeft superior intercostalAccessory hemiazygos  <response>: Tributaries of Azygos veinRight superior intercostal veinRight posterior intercostal veins 5 to 11Hemiazygos veinAccessory hemiazygos veinRight bronchial veinEsophageal, mediastinal and pericardial veins. 