Raphe magnus nucleus is involved in ventilatory but not hypothermic response to CO2.

@article{Dias2007RapheMN,
  title={Raphe magnus nucleus is involved in ventilatory but not hypothermic response to CO2.},
  author={Mirela B Dias and Tatiane B Nucci and Lisandra Oliveira Margatho and Jose Antunes-Rodrigues and Luciane H Gargaglioni and Luiz Guilherme Siqueira Branco},
  journal={Journal of applied physiology},
  year={2007},
  volume={103 5},
  pages={1780-8}
}
There is evidence that serotonin [5-hydroxytryptamine (5-HT)] is involved in the physiological responses to hypercapnia. Serotonergic neurons represent the major cell type (comprising 15-20% of the neurons) in raphe magnus nucleus (RMg), which is a medullary raphe nucleus. In the present study, we tested the hypothesis 1) that RMg plays a role in the ventilatory and thermal responses to hypercapnia, and 2) that RMg serotonergic neurons are involved in these responses. To this end, we… CONTINUE READING

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