NEET PG – 84186 Leave a Comment / NEET PG 2021 / By Neelam Maurya Question The reason for the long left recurrent laryngeal nerve is due to the persistence of which arch artery? A. 3rd arch B. 4th arch C. 5th arch D. 2nd arch Show Answer Correct Answer » B Explanation Ans: B. 4th arch Left RLN winds around the arch of aorta Arch of aorta is derived from the 4th arch Langmans Medical Embryology 13th edition (Page no 88,239) Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like this:Like Loading…