Effects of hypercapnia on tracheal pressure, diaphragm and intercostal electromyograms in unanaesthetized fetal lambs.

@article{Dawes1982EffectsOH,
  title={Effects of hypercapnia on tracheal pressure, diaphragm and intercostal electromyograms in unanaesthetized fetal lambs.},
  author={Geoffrey S. Dawes and William N. Gardner and Barbara M Johnston and David W Walker},
  journal={The Journal of physiology},
  year={1982},
  volume={326},
  pages={461-74}
}
1. The electromyographic (e.m.g.) activity of the diaphragm and intercostal muscles has been recorded during breathing movements of unanaesthetized lambs in utero (109-135 days), and compared with the changes of tracheal pressure.2. The diaphragm e.m.g. was irregular in size, shape and timing, with a variable rate of rise during inspiration, often with a flattening of integrated activity before the end of a breath and with little or no post-inspiratory activity.3. The diaphragm e.m.g. gave the… CONTINUE READING

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