RT info:eu-repo/semantics/article
T1 Comparative anatomy of the ligaments and muscles of the radiocarpal joint in chimpanzees and humans
A1 Pastor Vázquez, Juan Francisco
A1 Paz Fernández, Félix Jesús de
A1 Gómez, Mónica
A1 de Diego, Marina
A1 Casado, Aroa
A1 Potau, Josep Maria
A1 Barbosa Cachorro, María Mercedes
K1 Anatomía
K1 Articulaciones
K1 Músculos
K1 Chimpanzee
K1 Radiocarpal joint
K1 Wrist ligaments
K1 2401.01 Anatomía Animal
AB Objectives: In the present study, we have analyzed the anatomy of the radiocarpal joint ligaments and muscles in Pan troglodytes and Homo sapiens in order to identify similarities and differences between the two species that may be related to differences in hand use and function.Materials and Methods: Anatomical dissections of the ligaments and muscles of the radiocarpal joint were performed in six adult chimpanzees and 12 humans. The mass of each ligament and of the functional ligament groups were calculated relative to the total ligament mass and compared between the two species. The mass of the functional muscle groups relative to the total mass of the muscles of the radiocarpal joint was also calculated and compared between the two species.Results: The ligaments of the radiocarpal joint had similar anatomical characteristics in chimpanzees and humans. The relative mass of the palmar ligaments was greater in humans, while that of the dorsal radiocarpal ligament was greater in chimpanzees. In both species, the relative mass of the palmar and dorsal muscle groups was inversely related to that of the corresponding ligament groups.Discussion: The greater relative mass of the palmar ligaments in humans may be related to the importance of wrist extension during manipulative tasks. The greater relative mass of the dorsal radiocarpal ligament in chimpanzees may be related to the need to stabilize the radiocarpal joint in flexion, mainly during arboreal locomotion.
PB Wiley
SN 2692-7691
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/74315
UL https://uvadoc.uva.es/handle/10324/74315
LA eng
NO American Journal of Biological Anthropology, Junio 2022, vol. 178, n.2. p. 301-311.
NO Producción Científica
DS UVaDOC
RD 03-jun-2025