Collateral flow resistance and time constants in dog and horse lungs.

@article{Robinson1978CollateralFR,
  title={Collateral flow resistance and time constants in dog and horse lungs.},
  author={Norman Edward Robinson and P R Sorenson},
  journal={Journal of applied physiology: respiratory, environmental and exercise physiology},
  year={1978},
  volume={44 1},
  pages={63-8}
}
We studied collateral flow resistance in exsanguinated, excised lower lobes and accessory lobes of dog and horse lungs, respectively. A double lumen catheter obstructed a peripheral airway isolating a segment of the lobe. Oxygen flowed into the segment via a rotameter which measured flow (Vcoll) while the inner catheter recorded segment pressure (Ps). Gas delivered into the segment flowed out via collateral channels. Collateral flow resistance was calculated as (Ps - PL)/Vcoll, where PL… CONTINUE READING

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