This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Structure not passing through the esophageal hiatus: 
Select and explain. 
A. Left phrenic nerve, B. Right vagus nerve, C. Left vagus nerve, D. Left gastric aery
A: Left phrenic nerve
Answer: A: Left phrenic nerve 
Explanation: Aoic opening lies in osteoaponeurotic pa of diaphragm between right & left crusQ at T1212 veebral level and it transmits - aoa, azygous vein & thoracic ductQ.Oesophageal opening lies in muscular poion derived from right crus at TIO levelQ and it transmits oesophagusQ, oesophageal branch of left gastric aeryQ and both right & left vagus (gastric) nervesQRight phrenic nerve passes through the central tendon of diaphragm at T8 levelQ, either through venacaval apeure (with IVC)Q or just lateral to it. Whereas, left phrenic nerve passes through the muscular pa of diaphragm anterior to central tendon, just lateral to left cardiac surface and more anterior than the right phrenic nerve.