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2. The bowl of the LMA aligns with the hypopharynx.
Cricoid pressure should not impede placement of an LMA.
Second generation LMAs include a gastric port, which may be large enough to permit access to the lower oesophagus and stomach.
Primary and secondary seal pressures typically reach 20 cmH20.
Significant resistance to LMA insertion may be encountered if the palatopharyngeal angle, which boarders the oral cavity and oropharynx, is greater than 90 degrees.
The anterior surface of the proximal LMA cuff should abut and compress the epiglottis to the base of the tongue.
Mouth opening of equal to or less than 3 cm is likely to cause significant issues with inserting an LMA.