<prompt> All of the following lie between the 1st rib and the apex of the lung exceptSuperior intercoastal aretryThoracic ductFirst posterior intercostal veinSympathetic trunk  <response>: The thoracic duct oesnot lie between the 1st rib and the apex of the lung It arises through the supeior thoracic apeure. The structures present between the 1st rib and apex of the lung medial to lateral are SVAN: Sympathetic trunk Vein posterior intercostal Aery superior intercostal Nerve T1 nerve Ref: Grays Anatomy 41st edition Pgno: 943-945 