Double aoa occurs due to
Double aoa occurs due to the persistence of distal poion of the right dorsal aoaRef: Inderbir Singh&;s Human embryology; Tenth edition; Pg 257
Non development of the right 4th aoic arch
Non development of the left 4th aoic arch
Non division of truncus aeriosus
Persistence of distal poion of the right dorsal aoa
General anatomy