| airway | 1. Any part of the respiratory tract through which air passes during breathing. 2. In anaesthesia or resuscitation, a device for correcting obstruction to breathing, especially an oropharyngeal and nasopharyngeal airway, endotracheal airway, or tracheotomy tube. (05 Mar 2000) |
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| airway obstruction | Any hindrance to the passage of air into and out of the lungs. (12 Dec 1998) |
| airway pattern | Chest radiographic appearance of thickened bronchial walls, bronchiectasis, bronchiolitis, or acinar consolidation. (05 Mar 2000) |
| airway resistance | The opposition of the tracheobronchial tree to air flow: the mouth-to-alveoli pressure difference divided by the air flow. (12 Dec 1998) |
| anatomical airway | The volume of the conducting airways from the external environment (at the nose and mouth) down to the level at which inspired gas exchanges oxygen and carbon dioxide with pulmonary capillary blood; formerly presumed to extend down to the beginning of alveolar epithelium in the respiratory bronchioles, but more recent evidence indicates that effective gas exchange extends some distance up the thicker-walled conducting airways because of rapid longitudinal mixing. Compare: alveolar dead space, physiologic dead space. Synonym: anatomical airway. (05 Mar 2000) |
| respiratory airway | That part of the airway where interchange of gases occurs; it includes respiratory bronchioles, alveolar ducts, sacs, and alveoli. (05 Mar 2000) |
| conducting airway | The airway from the nasal cavity to a terminal bronchiole. (05 Mar 2000) |
| continuous positive airway pressure | A technique of respiratory therapy, in either spontaneously breathing or mechanically ventilated patients, in which airway pressure is maintained above atmospheric pressure throughout the respiratory cycle by pressurization of the ventilatory circuit. (05 Mar 2000) |
| upper airway | The portion of the respiratory tract that extends from the nares or mouth to and including the larynx. (05 Mar 2000) |
| lower airway | The portion of the respiratory tract that extends from the subglottis to and including the terminal bronchioles. (05 Mar 2000) |
| arthropathy, neurogenic | Chronic progressive degeneration of the stress-bearing portion of a joint, with bizarre hypertrophic changes at the periphery. It is probably a complication of a variety of neurologic disorders, particularly tabes dorsalis, involving loss of sensation, which leads to relaxation of supporting structures and chronic instability of the joint. (12 Dec 1998) |
| autonomic neurogenic bladder | Malfunctioning bladder, secondary to low spinal cord lesions. (05 Mar 2000) |
| bladder, neurogenic | Any condition of dysfunction of the urinary bladder caused by a lesion of the central or peripheral nervous system. (12 Dec 1998) |
| reflex neurogenic bladder | An abnormal condition of bladder function whereby the bladder is cut off from upper motor neuron control, but where the lower motor neuron arc is still intact. (05 Mar 2000) |
| neurogenic | <embryology> Arising from or caused by the nervous system. Origin: Gr. Gennan = to produce (27 Sep 1997) |