High-frequency and medium-frequency components of different inspiratory nerve discharges and their modification by various inputs

Brain Res. 1987 Aug 4;417(1):148-52. doi: 10.1016/0006-8993(87)90190-9.

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.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Carbon Dioxide / physiology
  • Cats
  • Decerebrate State / physiopathology
  • Hypoglossal Nerve / physiology*
  • Laryngeal Nerves / physiology*
  • Lung / innervation*
  • Motor Neurons / physiology
  • Neurons, Afferent / physiology
  • Phrenic Nerve / physiology*
  • Recurrent Laryngeal Nerve / physiology*
  • Respiration
  • Respiratory Muscles / innervation*

Substances

  • Carbon Dioxide