system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Right and left crus of diaphragm forms aoic hiatus. Which of the following structures are transmitted through the aoic hiatus?
assistant
The correct answer is  The aoic hiatus is the opening posterior in the diaphragm for the descending aoa. It also transmits the thoracic duct and azygos vein and sometimes the hemiazygos vein.