During laryngoscopy and endo-tracheal intubation which of the maneuver is not performed

During laryngoscopy and endo-tracheal intubation which of the maneuver is not performed

1. Flexion of the neck.


2. Extension of Head at the atlanto-occipital joint.


3. The laryngoscope is lifted upwards levering over the upper incisors.


4. In a straight blade laryngoscope, the epiglottis is lifted the tip.


Ans 1