Fig. 1From: A randomised crossover comparison of two endotracheal tube introducers: the FROVA and the Flexible Tip Bougie for GlideScope intubation of a difficult airway manikin by infrequent intubatorsFlexible Tip Bougie. Demonstrating flexion and extension via downward (dark arrow) or upward (white arrow) pressure upon the ridged slide on the shaft. Diagram copyright, Beth Croce Bioperspective.comBack to article page