Suprapontine control of respiration

Eric M. Horn, Tony G. Waldrop

Research output: Contribution to journalArticle

99 Scopus citations

Abstract

Despite focus on brainstem areas in central respiratory control, regions rostral to the medulla and pons are now recognized as being important in modulating respiratory outflow during various physiological states. The focus of this review is to highlight the role that suprapontine areas of the mammalian brain play in ventilatory control mechanisms. New imaging techniques have become invaluable in confirming and broadening our understanding of the manner in which the cerebral cortex of humans contributes to respiratory control during volitional breathing. In the diencephalon, the integration of respiratory output in relation to changes in homeostasis occurs in the caudal hypothalamic region of mammals. Most importantly, neurons in this region are strongly sensitive to perturbations in oxygen tension which modulates their level of excitation. In addition, the caudal hypothalamus is a major site for 'central command', or the parallel activation of locomotion and respiration. Furthermore, midbrain regions such as the periaqueductal gray and mesencephalic locomotor region function in similar fashion as the caudal hypothalamus with regard to locomotion and more especially the defense reaction. Together these suprapontine regions exert a strong modulation upon the basic respiratory drive generated in the brainstem. Copyright (C) 1998 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)201-211
Number of pages11
JournalRespiration Physiology
Volume114
Issue number3
DOIs
StatePublished - Dec 1998

Keywords

  • Brainstem
  • Control of breathing
  • Control of respiration
  • Hypoxia
  • Suprapontine
  • Suprapontine control

ASJC Scopus subject areas

  • Physiology
  • Pulmonary and Respiratory Medicine

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