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What is Which of these pass through aortic hiatus and explain in detail?
Ans. is 'a' i.e Thoracic duct and azygous vein Structures passing through the large openings in the diaphragmThe aortic openingaorta*thoracic duct* azygos vein*Oesophageal openingOesophagus*Gastric (vagus) nerves*Oesophageal branches of the left gastric artery*Vena caval openingthe inferior vena cava*branches of the right phrenic nerve*Structures passing through the small openings in the diaphragm*Each crus of the diaphragm is pierced by the greater* and the lesser splanchnic nerves*. The left crus is pierced in addition by the hemiazygos vein*Sympathetic chain passes behind the medial arcuate ligament*Subcostal vessels and nerves pass behind the lateral arcuate ligament*Larry's space or Foramen of Morgagni's - ( space between the xiphoid and the costal cartilage origins of the diaphragm) Superior epigastric vessels*Musculophrenic vessels pierce the diaphragm at the 8th or 9th costal cartilage.Also knowVertebral level of large openings in diaphragm* * Aortic opening - T12 * Oesophageal opening - T10*Venacaval opening - T8