<prompt> Which of these pass through aortic hiatusThoracic duct and azygos veinThoracic duct and gastric arteryVagus nerve with oesophagusAorta with oesophagus  <response>: Ans. is a i.e Thoracic duct and azygous vein Structures passing through the large openings in the diaphragmThe aortic openingaortathoracic duct azygos veinOesophageal openingOesophagusGastric vagus nervesOesophageal branches of the left gastric arteryVena caval openingthe inferior vena cavabranches of the right phrenic nerveStructures passing through the small openings in the diaphragmEach crus of the diaphragm is pierced by the greater and the lesser splanchnic nerves. The left crus is pierced in addition by the hemiazygos veinSympathetic chain passes behind the medial arcuate ligamentSubcostal vessels and nerves pass behind the lateral arcuate ligamentLarrys space or Foramen of Morgagnis - space between the xiphoid and the costal cartilage origins of the diaphragm Superior epigastric vesselsMusculophrenic vessels pierce the diaphragm at the 8th or 9th costal cartilage.Also knowVertebral level of large openings in diaphragm Aortic opening - T12 Oesophageal opening - T10Venacaval opening - T8 