This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
All of the following lie between the 1st rib and the apex of the lung except 
Select and explain. 
A. Superior intercoastal aretry, B. Thoracic duct, C. First posterior intercostal vein, D. Sympathetic trunk
B: Thoracic duct
Answer: B: Thoracic duct 
Explanation: The thoracic duct oesnot lie between the 1st rib and the apex of the lung It arises through the supeior thoracic apeure. The structures present between the 1st rib and apex of the lung (medial to lateral) are SVAN: Sympathetic trunk Vein (posterior intercostal) Aery ( superior intercostal ) Nerve (T1 nerve) Ref: Gray's Anatomy 41st edition Pgno: 943-945