Linked Life Data

4012091

Source:http://linkedlifedata.com/resource/pubmed/id/4012091

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1985-8-16
pubmed:abstractText
The influence of head position on the respiratory activity of the diaphragm (DIA), posterior cricoarytenoid (PCA) and genioglossus (GG) muscles was studied in conscious cats with chronically implanted electromyographic electrodes. Tracheal pressure was also recorded through a small implanted catheter. Spontaneous or passive downward movements of the head resulted in sustained increases in the respiratory excursions of tracheal pressure and in PCA and GG activities. Conversely, these variables all decreased when the head was raised. Activity of the DIA was little affected. In animals with chronic tracheostomies, which greatly diminished tracheal pressure excursions and their changes with head movements, the postural responses of PCA and GG activities persisted, but were attenuated. The responses also persisted after bilateral superior laryngeal nerve section. These findings demonstrate responses that act to maintain the patency of the upper respiratory tract, probably by reflex mechanisms. Receptors in the upper airway contribute to the responses, but other afferents - possibly from vestibular or joint receptors - are also involved.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0034-5687
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
181-92
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Changes in upper airway muscle activity related to head position in awake cats.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.