<prompt> Structures that pass from thorax to abdomen behind the diaphragm are all exceptAzygos veinAoaThoracic ductGreater splanchnic nerve  <response>: Each crus of the diaphragm is pierced by the greater and lesser splanchnic nervesB D CHAURASIA;S HUMAN ANATOMY LOWER LIMB ABDOMEN AND PELVIS VOLUME 2,SIXTH EDITON Page no:332,333 