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
The order of neurovascular bundle in the intercostal space from above downwards is:- 
Select and explain. 
A. VAN, B. ANV, C. AVN, D. VNA
A: VAN
Answer: A: VAN 
Explanation: The spaces between the ribs contain three muscles of respiration: the external intercostal, the internal intercostal, and the transversus thoracis muscle.The intercostal nerves and blood vessels run between the intermediate and deepest layers of muscles. They are arranged in the following order from above downward: intercostal vein, intercostal aery, and intercostal nerve (i.e., VAN).