File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1016/0034-5687(94)00128-M
- Scopus: eid_2-s2.0-0028934049
- PMID: 7624613
- WOS: WOS:A1995QX99700003
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Expiratory neural activities in gasping induced by pharyngeal stimulation and hypoxia
Title | Expiratory neural activities in gasping induced by pharyngeal stimulation and hypoxia |
---|---|
Authors | |
Keywords | Control of breathing, central neuronal activity Hypoxia Mammals, cat Pattern of breathing, gasping Reflexes, aspiration |
Issue Date | 1995 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/resphysiol |
Citation | Respiration Physiology, 1995, v. 100 n. 2, p. 119-127 How to Cite? |
Abstract | The purpose was to characterize expiratory neural activities in gasping elicited during the aspiration reflex (AR) in hyperoxia and during hypoxia-induced gasping. In decerebrate, vagotomized and paralyzed cats, we recorded activities of inspiratory and expiratory cranial and spinal nerves. The AR was elicited by touching the epipharyngeal mucosa. In eupnea, spinal expiratory activities were greatly decreased during AR whereas laryngeal expiratory activities were increased. In hypoxia-induced gasping, both the laryngeal and spinal expiratory activities were reduced. All of the inspiratory activities were increased during both gasping and the AR. In addition, neural activities were below control levels following AR; activities gradually recovered to control levels. We conclude that spinal expiratory activities are inhibited during the AR and gasping. Results are consistent with the concept that medullary mechanisms for gasping are recruited by mechanical stimulation of the epipharynx. In hypoxia-induced gasping, the hypoxia, per se, causes a separate suppression of laryngeal expiratory activities. |
Persistent Identifier | http://hdl.handle.net/10722/171615 |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Fung, ML | en_US |
dc.contributor.author | St John, WM | en_US |
dc.date.accessioned | 2012-10-30T06:15:58Z | - |
dc.date.available | 2012-10-30T06:15:58Z | - |
dc.date.issued | 1995 | en_US |
dc.identifier.citation | Respiration Physiology, 1995, v. 100 n. 2, p. 119-127 | en_US |
dc.identifier.issn | 0034-5687 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/171615 | - |
dc.description.abstract | The purpose was to characterize expiratory neural activities in gasping elicited during the aspiration reflex (AR) in hyperoxia and during hypoxia-induced gasping. In decerebrate, vagotomized and paralyzed cats, we recorded activities of inspiratory and expiratory cranial and spinal nerves. The AR was elicited by touching the epipharyngeal mucosa. In eupnea, spinal expiratory activities were greatly decreased during AR whereas laryngeal expiratory activities were increased. In hypoxia-induced gasping, both the laryngeal and spinal expiratory activities were reduced. All of the inspiratory activities were increased during both gasping and the AR. In addition, neural activities were below control levels following AR; activities gradually recovered to control levels. We conclude that spinal expiratory activities are inhibited during the AR and gasping. Results are consistent with the concept that medullary mechanisms for gasping are recruited by mechanical stimulation of the epipharynx. In hypoxia-induced gasping, the hypoxia, per se, causes a separate suppression of laryngeal expiratory activities. | en_US |
dc.language | eng | en_US |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/resphysiol | en_US |
dc.relation.ispartof | Respiration Physiology | en_US |
dc.subject | Control of breathing, central neuronal activity | - |
dc.subject | Hypoxia | - |
dc.subject | Mammals, cat | - |
dc.subject | Pattern of breathing, gasping | - |
dc.subject | Reflexes, aspiration | - |
dc.subject.mesh | Animals | en_US |
dc.subject.mesh | Anoxia - Physiopathology | en_US |
dc.subject.mesh | Brain Stem - Cytology - Physiology | en_US |
dc.subject.mesh | Cats | en_US |
dc.subject.mesh | Female | en_US |
dc.subject.mesh | Inhalation | en_US |
dc.subject.mesh | Male | en_US |
dc.subject.mesh | Neurons - Physiology | en_US |
dc.subject.mesh | Pharynx - Innervation - Physiology | en_US |
dc.subject.mesh | Physical Stimulation | en_US |
dc.subject.mesh | Reflex - Physiology | en_US |
dc.subject.mesh | Respiration - Physiology | en_US |
dc.subject.mesh | Respiratory Center - Physiology | en_US |
dc.title | Expiratory neural activities in gasping induced by pharyngeal stimulation and hypoxia | en_US |
dc.type | Article | en_US |
dc.identifier.email | Fung, ML:fungml@hkucc.hku.hk | en_US |
dc.identifier.authority | Fung, ML=rp00433 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/0034-5687(94)00128-M | en_US |
dc.identifier.pmid | 7624613 | - |
dc.identifier.scopus | eid_2-s2.0-0028934049 | en_US |
dc.identifier.volume | 100 | en_US |
dc.identifier.issue | 2 | en_US |
dc.identifier.spage | 119 | en_US |
dc.identifier.epage | 127 | en_US |
dc.identifier.isi | WOS:A1995QX99700003 | - |
dc.publisher.place | Netherlands | en_US |
dc.identifier.scopusauthorid | Fung, ML=7101955092 | en_US |
dc.identifier.scopusauthorid | St John, WM=36831054200 | en_US |
dc.identifier.issnl | 0034-5687 | - |