Linked Life Data

6496703

Source:http://linkedlifedata.com/resource/pubmed/id/6496703

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4 Pt 2
pubmed:dateCreated
1984-11-30
pubmed:abstractText
Previous work has characterized the Purkinje-ventricular junction (PVJ) of papillary muscles as a region of low safety factor with some delay between P and V activation. We have previously shown that the P strand action potential activates a layer of P cells over most of the papillary muscle surface, but activation of the underlying V cells occurs only at specific junctional sites, generally near the base of the muscle. Our present results from both dog and rabbit left papillary muscles show that the junctional regions for propagation from the V layer up into the P layer include not only these specific P-to-V sites but also other sites located more toward the apex of the muscle. These results show that the papillary muscles have regions of potential unidirectional block, although the manifestation of unidirectional block at these sites requires the premature excitation of the ventricular layer.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0002-9513
pubmed:author
pubmed:issnType
Print
pubmed:volume
247
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
H584-95
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Unidirectional block between Purkinje and ventricular layers of papillary muscles.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't