title: High-frequency and medium-frequency components of different inspiratory nerve discharges and their modification by various inputs.
abstract: In decerebrate paralyzed cats, spectral analysis was performed on simultaneous recordings of efferent inspiratory nerves (phrenic, recurrent laryngeal, hypoglossal). Spectral peaks were present both in the high-frequency (HFO) range (50-100 Hz) and the medium-frequency (MFO) range (20-50 Hz). Different activities were coherent only in the HFO range, indicating that the HFOs arise in a common inspiratory pattern generator that drives the different motoneuron populations, whereas the MFOs are specific to different systems.
mesh_terms: D000818:Animals; D002245:Carbon Dioxide / Q000502:physiology; D002415:Cats; D003655:Decerebrate State / Q000503:physiopathology; D007002:Hypoglossal Nerve / Q000502:physiology*; D007823:Laryngeal Nerves / Q000502:physiology*; D008168:Lung / Q000294:innervation*; D009046:Motor Neurons / Q000502:physiology; D009475:Neurons, Afferent / Q000502:physiology; D010791:Phrenic Nerve / Q000502:physiology*; D012009:Recurrent Laryngeal Nerve / Q000502:physiology*; D012119:Respiration; D012132:Respiratory Muscles / Q000294:innervation*
chemical_list: D002245:Carbon Dioxide