| Spatial arrangement of the heart muscle fascicles and intramyocardial connective tissue in the Spanish fighting bull (Bos taurus). | |
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MedLine Citation:
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PMID: 8014119 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The spatial arrangement of the muscle fascicles and intramyocardial connective tissue was examined in the ventricles of the heart of the Spanish fighting bull (Bos taurus). In both ventricles, the muscle fascicles of the myocardium are arranged in 3 main directions, forming 3 muscle layers within the ventricular wall. The preferentially vertical arrangement of the muscle fascicles in the superficial and deep layers at the level of the fibrous aortic rings and the base of the semilunar valve leaflets suggests that these fascicles are actively involved in valvular dynamics. After controlled digestion of myocytes and elastic fibres with NaOH, a 3-dimensional arrangement of the scaffolding of connective tissue that supports the muscle fascicles and myocytes was observed. The arrangement and structure of this scaffolding may influence the order of contraction of muscle fascicles in different layers of the ventricle. In addition, differences were observed between the connective tissue scaffolding surrounding the myocytes of the 2 ventricles; these variations were correlated with the different biomechanical properties. |
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Authors:
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D Sánchez-Quintana; V Climent; V Garcia-Martinez; M Rojo; J M Hurlé |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of anatomy Volume: 184 ( Pt 2) ISSN: 0021-8782 ISO Abbreviation: J. Anat. Publication Date: 1994 Apr |
Date Detail:
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Created Date: 1994-07-28 Completed Date: 1994-07-28 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 0137162 Medline TA: J Anat Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 273-83 Citation Subset: IM |
Affiliation:
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Department of Morphological Sciences, Faculty of Medicine, University of Extremadura, Badajoz, Spain. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cattle / anatomy & histology* Connective Tissue / anatomy & histology* Heart Ventricles / anatomy & histology*, ultrastructure Male Microscopy, Electron, Scanning Muscles / anatomy & histology*, ultrastructure |
| Comments/Corrections | |
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