Which of the following structures pass through the aoic hiatus of the diaphragm?
Aoic hiatus is located at the T12 veebral level, behind the two crura. The left and right crura form the left and right borders of the aoic opening. The aoic opening allows passage for the aoa, the azygos vein, hemiazygos vein and the thoracic lymphatic duct. The caval opening allows passage for the inferior vena cava and branches of the right phrenic nerve. The esophageal opening allows passage for the esophagus and the left and right vagus nerves. The esophageal branches of the left gastric aery and the esophageal tributaries of the left gastric vein also passes through this opening.
Inferior vena cava
Oesophagus
Vagus nerve
Azygos vein