Role of vagus in thermal panting.
Indian J Physiol Pharmacol
;
1978 Jan-Mar; 22(1): 39-43
Artigo
em Inglês
| IMSEAR
| ID: sea-108342
ABSTRACT
In dogs anaesthetised with pentobarbitone sodium, raising the body temperature from 37 degrees C to 42 degrees C increased the rate of respiration and pulmonary ventilation but decreased the tidal volume. A similar change though of a lower magnitude, was observed in these parameters after cold blocking the vagi. At 40 degrees C body temperature, however, the vagal block was not effective in reducing the rate. The significance of hyperthermic panting mechanism dominating the Hering-Breuer mechanism at 40 degrees C has been discussed. It has been postulated that the vagi carry temperature dependent afferents that have effect opposite to the Hering-Breuer reflex. At 42 degrees C when respiratory failure usually sets in the temperature regulating function of respiration is the last to be lost.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Reflexo
/
Respiração
/
Nervo Vago
/
Temperatura Corporal
/
Regulação da Temperatura Corporal
/
Feminino
/
Masculino
/
Volume de Ventilação Pulmonar
/
Cães
/
Animais
Idioma:
Inglês
Revista:
Indian J Physiol Pharmacol
Ano de publicação:
1978
Tipo de documento:
Artigo
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