Symmorphosis in the proximal pathway for oxygen in the leaf-eared mouse Phyllotis darwini
Biol. Res
;
43(1): 75-81, 2010. graf, tab
Artigo
em Inglês
| LILACS
| ID: lil-548031
ABSTRACT
In this report, we explore the matching of structures to functional needs by comparing previously reported data of maximal oxygen consumption and the development of the lung in the leaf-eared mouse Phyllotis darwini in warm and cold environments. We discuss whether the state of structural design is commensurate with functional needs from regulated morphogenesis as predicted by the hypothesis of symmorphosis. We found a close match between respiratory structures and functional needs during postnatal development, expressed as safety factors close to unity. However, in the adult stage the safety factors were greater than two, which suggests that adult animals acquired a structure greater than that required considering their maximum capacities. A high safety factor in the respiratory system of adult mice may be a consequence of the symmorphosis that operates during ontogeny and does not necessarily support a rejection of this hypothesis.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Consumo de Oxigênio
/
Sigmodontinae
/
Pulmão
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
Idioma:
Inglês
Revista:
Biol. Res
Assunto da revista:
Biologia
Ano de publicação:
2010
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Chile
Instituição/País de afiliação:
Universidad de Chile/CL
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