Hierarchical recruitment of the sympathetic and parasympathetic limbs of the baroreflex in normotensive and spontaneously hypertensive rats.

@article{Simms2007HierarchicalRO,
  title={Hierarchical recruitment of the sympathetic and parasympathetic limbs of the baroreflex in normotensive and spontaneously hypertensive rats.},
  author={Annabel E. Simms and Julian Paton and Anthony E. Pickering},
  journal={The Journal of physiology},
  year={2007},
  volume={579 Pt 2},
  pages={473-86}
}
The arterial baroreflex acts to buffer acute changes in blood pressure by reciprocal modulation of sympathetic and parasympathetic activity that controls the heart and vasculature. We have examined the baroreflex pressure-function curves for changes in heart rate and non-cardiac sympathetic nerve activity (SNA, thoracic chain T8-12) in artificially perfused in situ rat preparations. We found that the non-cardiac SNA baroreflex is active over a lower range of pressures than the cardiac… CONTINUE READING