Artículo
Ontogeny of the meniscus in the anuran Xenopus laevis
Lazarte, María de Los Ángeles
; Manzano, Adriana Silvina
; Sanchez, Romel Sebastian
; Abdala, Virginia Sara Luz
Fecha de publicación:
11/09/2022
Editorial:
Wiley-liss, div John Wiley & Sons Inc.
Revista:
Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology
ISSN:
1932-8486
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The anuran knee joint is subjected to the jump, one of the tetrapods' most demanding mechanical stresses. Consistent with this continuous effort, the knee of the anurans has a complex structure comparable to that of an amniote. Here, we describe the ontogeny of the Xenopus knee tissues and study the morphogenesis of the knee joint shape by performing a geometric morphometric analysis of specially selected anatomical structures: the menisci and the long bone epiphyses. A meniscus is a crescent-shaped fibrocartilaginous structure, with a triangular cross-section inserted between joints surfaces. A meniscus transmits load across the tibiofemoral joint by increasing congruity of the long bone epiphysis and decreasing the resulting stress exerted on the articular cartilage. We ask two questions: (1) what is the tissue composition along the ontogeny of the menisci of a swimming frog? (2) How do the menisci acquire the shape that will allow their adjustment? We studied the structures and tissue ontogeny of the knee of several specimens of Xenopus laevis and evaluated the congruity of the knee structures across the species ontogeny. Histological sections showed that the cavitation process responsible for separating the menisci and the epiphyses seems to be pivotal in shaping the conformity of these structures and the long bone epiphyses of the hindlimbs. The geometric morphometric analysis allowed us to interpret three phases of differentiation associated with limb functionality. The characteristic shape of the meniscus appears early in the ontogeny of the knee, simultaneously with the epiphysis contours.
Palabras clave:
GEOMETRIC MORPHOMETRICS
,
HINDLIMBS
,
HISTOLOGY
,
KNEE ONTOGENY
,
LOCOMOTION
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CICYTTP)
Articulos de CENTRO DE INV.CIENT.Y TRANSFERENCIA TEC A LA PROD
Articulos de CENTRO DE INV.CIENT.Y TRANSFERENCIA TEC A LA PROD
Articulos(IBN)
Articulos de INSTITUTO DE BIODIVERSIDAD NEOTROPICAL
Articulos de INSTITUTO DE BIODIVERSIDAD NEOTROPICAL
Articulos(INSIBIO)
Articulos de INST.SUP.DE INVEST.BIOLOGICAS
Articulos de INST.SUP.DE INVEST.BIOLOGICAS
Citación
Lazarte, María de Los Ángeles; Manzano, Adriana Silvina; Sanchez, Romel Sebastian; Abdala, Virginia Sara Luz; Ontogeny of the meniscus in the anuran Xenopus laevis; Wiley-liss, div John Wiley & Sons Inc.; Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; 306; 2; 11-9-2022; 457-469
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