Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1993-6-10
pubmed:abstractText
1. The skeleto-fusimotor or beta innervation was compared in cat peroneus brevis and peroneus tertius muscles, which differ in their composition of fatigue-resistant motor units; the slow (S) units predominate in brevis and the fast units (FR) in tertius. 2. In four brevis muscles, of thirty-four beta-axons (from a total of 114 axons supplying extrafusal muscle fibres) twenty-nine were dynamic (beta D) and only five static (beta S). In contrast, in three tertius muscles, of twenty-five beta-axons (from a total of 82 axons) twelve were static and thirteen dynamic. 3. In a population of thirty-five brevis and thirty tertius spindles, the proportion of beta D-innervated spindles was greater in the brevis (68.5%) than in the tertius (50%) whereas that of beta S-innervated spindles was greater in the tertius (40%) than in the brevis (17.1%). In a population of thirty-two brevis and twenty-seven tertius spindles in which the presence of bag1 fibres was deduced from the existence of a dynamic innervation, the proportion of spindles innervated by beta D-axons was 80% in the brevis and 62% in the tertius. 4. In both muscles, the number of beta D effects was greater than that of beta S effects. beta S-axons were rarely found to supply more than one spindle whereas beta D-axons supplying more than one spindle (up to four) were common. Spindles were often coinnervated by beta D- and beta S-axons.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-130468, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-140933, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-142128, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-142145, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-154938, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-1798039, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-2299381, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-2958438, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-3198800, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-3418525, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-4148752, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-4219341, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-5499818, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-6213764, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-6704739, http://linkedlifedata.com/resource/pubmed/commentcorrection/1302277-726924
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-3751
pubmed:author
pubmed:issnType
Print
pubmed:volume
458
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
519-25
pubmed:dateRevised
2010-9-7
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Comparison of skeleto-fusimotor innervation in cat peroneus brevis and peroneus tertius muscles.
pubmed:affiliation
Laboratoire de Neurophysiologie, Collège de France, Paris.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't