Inflammation occurs in the laryngeal, tracheal and bronchial cartilages. Risk factors include long-term intubation and tracheal or lung aspiration. Spontaneous respiration is ideally maintained until tracheal intubation is successful. If needed, provide the patient with oxygen and secure an airway via tracheal intubation. Some patients will need immediate tracheal intubation. It has been used in airway surgery as an alternative to tracheal intubation. It reduces the duration of postoperative tracheal intubation by roughly half. In the context of failed tracheal intubation, either tracheotomy or cricothyrotomy may be performed. The trachea are covered in partly ossified rings known as tracheal rings. This is done to help with tracheal intubation or electroconvulsive therapy. Interleukin-13 induces goblet cell differentiation and allows for the production of MUC5AC in tracheal epithelium. Slide tracheoplasty is said to be the best option in treating tracheal stenosis. The inflammatory process infiltrates muscles and causes symptoms of tracheal compression. Many techniques were described and employed, along with many different surgical instruments and tracheal tubes. Myriapods breathe through spiracles that connect to a tracheal system similar to that of insects.