During laryngoscopy, the tip or "beak"Â of the blade is compressed into the angle formed by the base of the tongue and the epiglottis (vallecula), indirectly raising the epiglottis.
The spatula of the blade has a smooth and gentle curve extending from the lock of the tip. In cross section, the construction resembles that of a reverse Z flange, facilitating greater access during intubation.