Osteohistological correlates of muscular attachment in terrestrial and freshwater Testudines

Sharpey's fibers are considered the anatomical structures integrated to the muscles. Since these fibers leave marks at the microscopic level, their presence and distribution are used as evidence of muscle attachment in extinct and extant forms. In recent years, studies have been focusing on mus...

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Autores principales: Pereyra, María Eugenia, Bona, Paula, Cerda, Ignacio Alejandro, Desántolo, Bárbara
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Ciencias Médicas
Sharpey's fibers
Testudines
Osteohistology
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127293
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127293
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Médicas
Sharpey's fibers
Testudines
Osteohistology
spellingShingle Ciencias Médicas
Sharpey's fibers
Testudines
Osteohistology
Pereyra, María Eugenia
Bona, Paula
Cerda, Ignacio Alejandro
Desántolo, Bárbara
Osteohistological correlates of muscular attachment in terrestrial and freshwater Testudines
topic_facet Ciencias Médicas
Sharpey's fibers
Testudines
Osteohistology
description Sharpey's fibers are considered the anatomical structures integrated to the muscles. Since these fibers leave marks at the microscopic level, their presence and distribution are used as evidence of muscle attachment in extinct and extant forms. In recent years, studies have been focusing on muscle-bone and tendon-bone interaction mostly on mammals. The main objective of this work is to contribute to the morphological and histological knowledge of muscle attachment in other amniotes, such as reptiles, and their variation related to different locomotor habits. In this way, a study was performed on terrestrial and aquatic turtles. The musculature related to the movement of the humerus, and pectoral girdle in Chelonoidis chilensis, Phrynops hilarii and Hydromedusa tectifera was analyzed. Dissections were performed mapping the origins and insertions of each muscle and undecalcified thin sections were performed in specific muscular attachment sites. We found some differences which were not previously reported, related to the insertion of the m. pectoralis, the m. coracobrachialis magnus and the origin of the m. tractor radii. The osteohistology revealed the presence of Sharpey's fibers in the cortex of all the bone elements analyzed. Patterns were established in relation to the orientation and density of Sharpey's fibers, which were used for the categorization of each muscle attachment site. The comparative micro-anatomical study of these areas did not reveal any important differences between terrestrial and freshwater turtles in muscles involved with the rotation, abduction and adduction of the humerus. In this way, the preliminary results suggest an absence of correlation between the distribution and density of Sharpey's fibers between different habitat forms, at least in the bones and species analyzed.
format Articulo
Articulo
author Pereyra, María Eugenia
Bona, Paula
Cerda, Ignacio Alejandro
Desántolo, Bárbara
author_facet Pereyra, María Eugenia
Bona, Paula
Cerda, Ignacio Alejandro
Desántolo, Bárbara
author_sort Pereyra, María Eugenia
title Osteohistological correlates of muscular attachment in terrestrial and freshwater Testudines
title_short Osteohistological correlates of muscular attachment in terrestrial and freshwater Testudines
title_full Osteohistological correlates of muscular attachment in terrestrial and freshwater Testudines
title_fullStr Osteohistological correlates of muscular attachment in terrestrial and freshwater Testudines
title_full_unstemmed Osteohistological correlates of muscular attachment in terrestrial and freshwater Testudines
title_sort osteohistological correlates of muscular attachment in terrestrial and freshwater testudines
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/127293
work_keys_str_mv AT pereyramariaeugenia osteohistologicalcorrelatesofmuscularattachmentinterrestrialandfreshwatertestudines
AT bonapaula osteohistologicalcorrelatesofmuscularattachmentinterrestrialandfreshwatertestudines
AT cerdaignacioalejandro osteohistologicalcorrelatesofmuscularattachmentinterrestrialandfreshwatertestudines
AT desantolobarbara osteohistologicalcorrelatesofmuscularattachmentinterrestrialandfreshwatertestudines
bdutipo_str Repositorios
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