Aoic hiatus contains: (A) Left gastric vein and thoracic duct, (B) Thoracic duct and hemiazygos vein, (C) Azygos vein and thoracic duct, (D) Left vagus and thoracic duct
Answer is C. The aoic opening is osseoaponeurotic.It lies at the lower border of the 12 th thoracic veebra.It transmits Aoa,Thoracic duct and Azygos vein. REF.B D Chaurasia's human anatomy,Vol 2,Fifth edition.Pg 337