This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Umblicial cord and diaphragm, Subject name: Anatomy
[{'content': 'Structure NOT passing through esophageal opening \nSelect and explain. \nA. Esophagus, B. Phrenic nerve, C. Vagus nerve, D. Gastric aery branches', 'role': 'user'}, {'content': 'Answer: B \nExplanation: At T8 - IVC hiatus in central tendon through which IVC and few branches of Rt. phrenic nerve passes At T10 - Oesophageal opening is present through which passes: Esophagus Esophageal branch of left gastric aery Anterior and posterior vagal trunk At T12 - Aoic hiatus posterior to diaphragm formed by median arcuate ligament through which passes: Aoa Thoracic duct Azygous vein', 'role': 'assistant'}]