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Anatomy All India exam 4d324fec

the reason for the long left recurrent laryngeal Nerve is due to the persistence of which arch aery?

A
3rd Arch
B
5th Arch
C
4th Arch
D
2nd Arch
High-Yield Explanation
Left RLN wind round the arch of aosta Arch of Aosta derived from left 4th Arch aery ref : VISHRAM SIGN EMBRYOLOGY

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