<prompt> All of the following are examples of definite airways, except:Nasotracheal tubeOrotracheal tubeLaryngeal Mask airwayCricothyroidotomy  <response>: C i.e. Laryngeal Mask airway Airways Definitive- Airway Tracheal tubes endotracheal tubesie Oral oro-tracheal tubesQ - Nasal naso-tracheal tubesQ - Tracheostomy tubesQ - Cuffed murphy tracheat tubes, Cole uncuffed pediatric TT, Spiral embedded tubes, Hunsaker Mon-Jet ventilation tube, laryngectomy tube, microlaryngeal tracheal surgery tube, endotrol trigger tube, endoflex tube, Parker flex tip tube, LITA laryngotracheal instillation of topical anesthesia etc. Percutaneous transcutaneous airway - Tracheostomy - CricothyrotomyQ surgical, needlecannula, Seldinger. Perilaryngeal airway is used for percutaneous dilatation cricothyroidotomy in difficult to intubatedifficult to ventilate scenario. Non-definitive Airways Oropharyngeal oral airway eg. Gudel airway, Berman airway, Patil-Syracus endoscopic airway, William airway intubator, Ovassapian fiber optic intubating airway and Berman intubatingpharyngeal airway. - Nasopharyngeal nasal airway or nasal trumpet eg Linder nasopharyngeal bubble tip airway, cuffed nasopharyngeal airway and binasal airway - Laryngeal mask airway LMA is a supraglotlic airway device-periglottic type that forms a seal around larynx with an inflatable cuff. 