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Fig. 4. Improved Jackson's position for trachea intubation

This improved position facilitates intubation and protects a mucous membrane of the larynx from injuries. Contemporary laryngoscopes allow pass the tube into the trachea only to the right from the blade, that is why a laryngoscope should be kept with the left hand forcing the tongue to the left and upwards with the help of the blade.

Prior to the introduction of laryngoscope it is necessary to draw the lips apart with the fingers in order to avoid their injury as a result of pressing them against the teeth by the blade (Fig. 5). While moving the blade forward the following anatomical land marks are, consecutively, coming into our view (Fig. 6): uvula of the soft palate (a), epiglottis (b), true glottis (c). If the blade

Fig. 5. Introduction of the laryngoscope blade into the oral cavity.

C d

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