<prompt> Foreign body from trachea most common goes to right bronchus due to -Right bronchus shallowWider in continuous line with tracheaRight bronchus is longerRight bronchus is horizontal  <response>: Ans. is b i.e., Wider in continuous line with trachea o Trachea bifurcates at Carina at Lower border of T4 vertebra at T4-T5 disc space into right and left principal primary bronchi.o Right principal bronchus is wider, shorter 2-5 cm long, and more vertical in the line of trachea 25deg with median plane.o Therefore a foreign body is most likely to lodge in the right bronchus. 