(1) The larynx, trachea , and bronchi exhibited extensive squamous metaplasia of the mucosa with reactive atypia.(2) The conducting portion of the respiratory system includes the nasal cavity, paranasal sinuses, nasopharynx, larynx, trachea , and bronchi.(3) If symptoms aren't improving in that time, see your doctor to make sure you don't have a bacterial infection in your lungs, larynx, trachea , sinuses or ears.(4) Additionally, the bronchi, trachea , and larynx demonstrated generalized erythema of the mucosa with overlying thin yellow mucus.(5) Minor salivary glands of mucinous type are also located in the nose, paranasal sinuses, the larynx, trachea and bronchi.(6) This finding illustrates how morphological changes during development can improve tracheal conductance.(7) The insects are tracheate .(8) This was a pretty far out idea, since blood-based gas exchange is what other arthropods use (including aquatic ones) but was previously thought to be completely absent in insects, which deliver air directly to their tissues via tracheae .(9) The fact that insects, chilopods and progoneates (many proponents of the insect-crustacean relationship simply neglect the fact that there are two more tracheate taxa, the symphyles and the pauropods!) all have no visible post-antennular appendage does not make it an A2 that was lost.(10) Breathing is by special gas exchange organs along the side of the body called tracheae and malpighian tubules.(11) The air sacs leading into and out of the lungs hold a large volume of fresh air, so in general, the respiratory costs of tracheal elongation are probably not high.(12) In this theory, the forerunners of wings were thoracic, highly tracheate gills that functioned as stabilizers during swimming.(13) The aquatic larvae or nymphs possess respiratory abdominal tracheal gills.(14) Myriapods have been traditionally considered the closest relatives of hexapods, thus implying only one origin of terrestriality for the tracheate lineage, but this view is now challenged by molecular evidence.(15) The lantern tracheal system is also highly specialized.(16) Insects are tracheate arthropods and employ direct transfer of respiratory gases to and from their sites of use and generation via the tracheal system.
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