Key result
Cervical vagotomy abolishes rapid respiration during hyperthermia in animals by reducing frequency and increasing depth.
Population
Four species of mammals (rabbit, lamb, rat, guinea-pig) and four species of birds (fowl, pigeon, duck, quail)
Comparison
Lung/air sac inflation, cervical vagotomy, and… vs Intact animals / normal body temperature
Design
Preclinical
Authors
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Vagal dependence of thermal panting varies by species; hypothesis-generating for respiratory control and leaves open human translation.
Thermal panting is controlled by central mechanisms alone in some mammals and birds, while in others it depends on extrinsic stimuli mediated by the vagus nerves.
Shane A. Richards (1968) studied Normal respiration and thermal polypnoea. Lung/air sac inflation and cervical vagotomy vs. Intact animals / normal body temperature was evaluated on Respiratory frequency and depth during hyperthermia. Cervical vagotomy reduced respiratory frequency and increased depth during hyperthermia, abolishing rapid respiration in rats, guinea-pigs, fowls, ducks, and quails.
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