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Elbow Extensor Muscles in Humans and Chimpanzees: Adaptations to Different Uses of the Upper Extremity in Hominoid Primates.
de Diego, Marina; Casado, Aroa; Gómez, Mónica; Ciurana, Neus; Rodríguez, Patrícia; Avià, Yasmina; Cuesta-Torralvo, Elisabeth; García, Natividad; San José, Isabel; Barbosa, Mercedes; de Paz, Félix; Pastor, Juan Francisco; Potau, Josep Maria.
Afiliación
  • de Diego M; Unit of Human Anatomy and Embryology, University of Barcelona, 08036 Barcelona, Spain.
  • Casado A; Unit of Human Anatomy and Embryology, University of Barcelona, 08036 Barcelona, Spain.
  • Gómez M; Institut d'Arqueologia de la Universitat de Barcelona (IAUB), Faculty of Geography and History, University of Barcelona (UB), 08001 Barcelona, Spain.
  • Ciurana N; Unit of Human Anatomy and Embryology, University of Barcelona, 08036 Barcelona, Spain.
  • Rodríguez P; Unit of Human Anatomy and Embryology, University of Barcelona, 08036 Barcelona, Spain.
  • Avià Y; Unit of Human Anatomy and Embryology, University of Barcelona, 08036 Barcelona, Spain.
  • Cuesta-Torralvo E; Institut d'Arqueologia de la Universitat de Barcelona (IAUB), Faculty of Geography and History, University of Barcelona (UB), 08001 Barcelona, Spain.
  • García N; Biological Anthropology Unit, Department of Animal Biology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain.
  • San José I; Institut d'Arqueologia de la Universitat de Barcelona (IAUB), Faculty of Geography and History, University of Barcelona (UB), 08001 Barcelona, Spain.
  • Barbosa M; Biological Anthropology Unit, Department of Animal Biology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain.
  • de Paz F; Department of Anatomy and Radiology, University of Valladolid, 47005 Valladolid, Spain.
  • Pastor JF; Department of Anatomy and Radiology, University of Valladolid, 47005 Valladolid, Spain.
  • Potau JM; Department of Anatomy and Radiology, University of Valladolid, 47005 Valladolid, Spain.
Animals (Basel) ; 12(21)2022 Oct 30.
Article en En | MEDLINE | ID: mdl-36359111
The anatomical and functional characteristics of the elbow extensor muscles (triceps brachii and anconeus) have not been widely studied in non-human hominoid primates, despite their great functional importance. In the present study, we have analyzed the muscle architecture and the expression of the myosin heavy chain (MHC) isoforms in the elbow extensors in humans and chimpanzees. Our main objective was to identify differences in these muscles that could be related to the different uses of the upper extremity in the two species. In five humans and five chimpanzees, we have analyzed muscle mass (MM), muscle fascicle length (MFL), and the physiological cross-sectional area (PCSA). In addition, we have assessed the expression of the MHC isoforms by RT-PCR. We have found high MM and PCSA values and higher expression of the MHC-IIx isoform in the triceps brachii of chimpanzees, while in humans, the triceps brachii has high MFL values and a higher expression of the MHC-I and MHC-IIa isoforms. In contrast, there were no significant differences between humans and chimpanzees in any of the values for the anconeus. These findings could be related to the participation of the triceps brachii in the locomotion of chimpanzees and to the use of the upper extremity in manipulative functions in humans. The results obtained in the anconeus support its primary function as a stabilizer of the elbow joint in the two species.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Animals (Basel) Año: 2022 Tipo del documento: Article País de afiliación: España Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Animals (Basel) Año: 2022 Tipo del documento: Article País de afiliación: España Pais de publicación: Suiza