Ultrastructure of the heart of the sturgeon Acipenser stellatus (Chondrostei).
Identifieur interne : 000800 ( PubMed/Corpus ); précédent : 000799; suivant : 000801Ultrastructure of the heart of the sturgeon Acipenser stellatus (Chondrostei).
Auteurs : R. Myklebust ; H. KryviSource :
- Cell and tissue research [ 0302-766X ] ; 1979.
English descriptors
- KwdEn :
- Animals, Cytoskeleton (ultrastructure), Fishes (anatomy & histology), Heart Atria (ultrastructure), Heart Ventricles (ultrastructure), Intercellular Junctions (ultrastructure), Mitochondria, Heart (ultrastructure), Myocardium (ultrastructure), Myofibrils (ultrastructure), Sarcolemma (ultrastructure), Sarcoplasmic Reticulum (ultrastructure).
- MESH :
- anatomy & histology : Fishes.
- ultrastructure : Cytoskeleton, Heart Atria, Heart Ventricles, Intercellular Junctions, Mitochondria, Heart, Myocardium, Myofibrils, Sarcolemma, Sarcoplasmic Reticulum.
- Animals.
Abstract
The ultrastructure of atrial and ventricular myocardial cells from Acipenser stellatus is described. The cells of the atrium are more loosely connected than those of the ventricle. Cell contact is by simple intercalated discs and by desmosomes. The cells are flattened, with peripheral myofibrils and a central region of mitochondria and the nucleus. The sarcoplasmic reticulum consists of subsarcolemmal tubules, that frequently extend towards the central mitochondria. Dyads are small and positioned at any sarcomeric level. No T-tubules are present. Specific granules are restricted to the atrial cell, and are sometimes present within the SR tubules.
PubMed: 574799
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pubmed:574799Le document en format XML
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Myklebust</name></author><author><name sortKey="Kryvi, H" sort="Kryvi, H" uniqKey="Kryvi H" first="H" last="Kryvi">H. Kryvi</name></author></analytic><series><title level="j">Cell and tissue research</title><idno type="ISSN">0302-766X</idno><imprint><date when="1979" type="published">1979</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Cytoskeleton (ultrastructure)</term><term>Fishes (anatomy & histology)</term><term>Heart Atria (ultrastructure)</term><term>Heart Ventricles (ultrastructure)</term><term>Intercellular Junctions (ultrastructure)</term><term>Mitochondria, Heart (ultrastructure)</term><term>Myocardium (ultrastructure)</term><term>Myofibrils (ultrastructure)</term><term>Sarcolemma (ultrastructure)</term><term>Sarcoplasmic Reticulum (ultrastructure)</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Cytoskeleton</term><term>Heart Atria</term><term>Heart Ventricles</term><term>Intercellular Junctions</term><term>Mitochondria, Heart</term><term>Myocardium</term><term>Myofibrils</term><term>Sarcolemma</term><term>Sarcoplasmic Reticulum</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The ultrastructure of atrial and ventricular myocardial cells from Acipenser stellatus is described. The cells of the atrium are more loosely connected than those of the ventricle. Cell contact is by simple intercalated discs and by desmosomes. The cells are flattened, with peripheral myofibrils and a central region of mitochondria and the nucleus. The sarcoplasmic reticulum consists of subsarcolemmal tubules, that frequently extend towards the central mitochondria. Dyads are small and positioned at any sarcomeric level. No T-tubules are present. Specific granules are restricted to the atrial cell, and are sometimes present within the SR tubules.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">574799</PMID><DateCreated><Year>1980</Year><Month>03</Month><Day>27</Day></DateCreated><DateCompleted><Year>1980</Year><Month>03</Month><Day>27</Day></DateCompleted><DateRevised><Year>2003</Year><Month>11</Month><Day>14</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0302-766X</ISSN><JournalIssue CitedMedium="Print"><Volume>202</Volume><Issue>3</Issue><PubDate><Year>1979</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Cell and tissue research</Title><ISOAbbreviation>Cell Tissue Res.</ISOAbbreviation></Journal><ArticleTitle>Ultrastructure of the heart of the sturgeon Acipenser stellatus (Chondrostei).</ArticleTitle><Pagination><MedlinePgn>431-8</MedlinePgn></Pagination><Abstract><AbstractText>The ultrastructure of atrial and ventricular myocardial cells from Acipenser stellatus is described. The cells of the atrium are more loosely connected than those of the ventricle. Cell contact is by simple intercalated discs and by desmosomes. The cells are flattened, with peripheral myofibrils and a central region of mitochondria and the nucleus. The sarcoplasmic reticulum consists of subsarcolemmal tubules, that frequently extend towards the central mitochondria. Dyads are small and positioned at any sarcomeric level. No T-tubules are present. Specific granules are restricted to the atrial cell, and are sometimes present within the SR tubules.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Myklebust</LastName><ForeName>R</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Kryvi</LastName><ForeName>H</ForeName><Initials>H</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Cell Tissue Res</MedlineTA><NlmUniqueID>0417625</NlmUniqueID><ISSNLinking>0302-766X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003599" MajorTopicYN="N">Cytoskeleton</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005399" MajorTopicYN="N">Fishes</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006325" MajorTopicYN="N">Heart Atria</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006352" MajorTopicYN="N">Heart Ventricles</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007365" MajorTopicYN="N">Intercellular Junctions</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008929" MajorTopicYN="N">Mitochondria, Heart</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009206" MajorTopicYN="N">Myocardium</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="Y">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009210" MajorTopicYN="N">Myofibrils</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012508" MajorTopicYN="N">Sarcolemma</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012519" MajorTopicYN="N">Sarcoplasmic Reticulum</DescriptorName><QualifierName UI="Q000648" MajorTopicYN="N">ultrastructure</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1979</Year><Month>11</Month><Day>1</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1979</Year><Month>11</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1979</Year><Month>11</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">574799</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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