Effects of vestibular nerve transection on the calcium incorporation of fish otoliths.
Acta Astronaut
; 49(3-10): 371-9, 2001.
Article
em En
| MEDLINE
| ID: mdl-11669124
ABSTRACT
Previous investigations revealed that the growth of fish inner ear otoliths (otolith size and calcium-incorporation) depends on the amplitude and the direction of gravity, suggesting the existence of a (negative) feedback mechanism. In search for the regulating unit, the vestibular nerve was transacted unilaterally in neonate swordtail fish (Xiphophorus helleri) which were subsequently incubated in the calcium-tracer alizarin-complexone. Calcium incorporation ceased on the transacted head sides, indicating that calcium uptake is neurally regulated. Grant numbers 50 WB 9533, 50 WB 9997.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Nervo Vestibular
/
Ciprinodontiformes
/
Calcificação Fisiológica
/
Membrana dos Otólitos
/
Cálcio
/
Vestíbulo do Labirinto
Limite:
Animals
Idioma:
En
Revista:
Acta Astronaut
Assunto da revista:
MEDICINA AEROESPACIAL
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Alemanha