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Landmarks used for guidance from the tip of the nose to trachea. Up from left to right: tip of nose, upper lip, tongue, raphe palate, and uvula. Down from left to right: epiglottis, vocal cords, trachea with inwards bulging pars membranacea, trachea more expanded and also better visualization of the tracheal rings, and carina. © UZ Leuven, UZ Leuven, Belgium
