The order of neurovascular bundle in the intercostal space from above downwards is:-
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).
VAN
ANV
AVN
VNA