dc.creatorde Carvalho, H F
dc.creatorVidal, B de C
dc.date1994
dc.date2015-11-27T12:18:27Z
dc.date2015-11-27T12:18:27Z
dc.date.accessioned2018-03-29T00:51:10Z
dc.date.available2018-03-29T00:51:10Z
dc.identifierBiology Of The Cell / Under The Auspices Of The European Cell Biology Organization. v. 82, n. 1, p. 59-65, 1994.
dc.identifier0248-4900
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/7735121
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/193756
dc.identifier7735121
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1293989
dc.descriptionThe fiber distribution and ultrastructure in the plantaris longus pressure-bearing tendon of the bullfrog were investigated. The tension region of the tendon showed a predominant parallel distribution of collagen fibers, but three main zones with different crimp parameters were identified with the use of the polarizing microscope. The compression region showed collagen fibers with aspects of disaggregation and were composed of disperse and undulating fibrils. These collagen fibers establish a three-dimensional network but showed a preferential distribution in planes disposed perpendicularly to the tendon's main axis. It is assumed that the convoluted and disaggregated collagen fibers must be distended before exerting any reinforcement on the tissue and that this only occurs after a great deformation of the tendon. Groups of 5-6 fibrils not associated in fibers are also dispersed in the compression region. The tissue is assumed to have a highly viscous fluid nature allowing for the deformation needed for collagen fibrils to reinforce the tendon structure. The convoluted and crimped structure of collagen fibers would be especially useful when the tendon is submitted to the sudden and strong mechanical loading expected to occur during jumping and to provide the tendon with the capacity of great functional deformability necessary for the high amplitude of feet movements attained on jumping and swimming.
dc.description82
dc.description59-65
dc.languageeng
dc.relationBiology Of The Cell / Under The Auspices Of The European Cell Biology Organization
dc.relationBiol. Cell
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnimals
dc.subjectBiomechanical Phenomena
dc.subjectCollagen
dc.subjectMale
dc.subjectMicroscopy, Electron
dc.subjectMicroscopy, Electron, Scanning
dc.subjectMicroscopy, Polarization
dc.subjectProtein Conformation
dc.subjectRana Catesbeiana
dc.subjectTendons
dc.titleThe Unique Fibrillar Arrangement Of The Bullfrog Pressure-bearing Tendon As An Indicative Of Great Functional Deformability.
dc.typeArtículos de revistas


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