Reflex bronchial vasodilation in dogs evoked by injection of a small volume of water into a bronchus.

@article{Pisarri1993ReflexBV,
  title={Reflex bronchial vasodilation in dogs evoked by injection of a small volume of water into a bronchus.},
  author={T E Pisarri and H M Coleridge and J C Coleridge},
  journal={Journal of applied physiology},
  year={1993},
  volume={75 5},
  pages={
          2195-202
        }
}
Injection of water into a lobar bronchus stimulates airway C-fibers and rapidly adapting receptors and evokes airway defense reflexes. To determine whether this stimulus also evokes a reflex increase in bronchial blood flow (Qbr), we injected 1-2 ml of water into a lobar bronchus in anesthetized dogs. Injection decreased arterial pressure but increased Qbr from 9 +/- 1 to 21 +/- 3 ml/min. The increase had a latency of 6-8 s and reached a peak after approximately 20 s; Qbr returned to control… CONTINUE READING