[Role of the pyramidal tract in the mechanism of dyspnea and hyperventilation].
Hypoxia evoked by mechanical asphyxia first of all disturbs the generation of potentials in pyramidal tract neurons. Hypoxic work, therefore, causes inadequate contraction of somatic muscles, a difficulty in work performance and respiratory discomfort. Concurrently, the disturbance of the pyramidal tract disinhibits the respiratory center of the brain stem with a result of excessive hyperventilation during hypoxic work.
D000344:Afferent Pathways / Q000503:physiopathology; D000818:Animals; D001237:Asphyxia / Q000503:physiopathology*; D002415:Cats; D004417:Dyspnea / Q000503:physiopathology*; D006985:Hyperventilation / Q000503:physiopathology*; D000860:Hypoxia / Q000503:physiopathology; D008526:Medulla Oblongata / Q000503:physiopathology; D011712:Pyramidal Tracts / Q000503:physiopathology*; D012125:Respiratory Center / Q000503:physiopathology; D013003:Somatosensory Cortex / Q000503:physiopathology; D013787:Thalamic Nuclei / Q000503:physiopathology
Rol' piramidnogo trakta v mekhanizme odyshki i giperventiliatsii.