New perspectives on the evolution of lung ventilation mechanisms in vertebrates

  title={New perspectives on the evolution of lung ventilation mechanisms in vertebrates},
  author={E. Brainerd},
  journal={Experimental Biology Online},
  • E. Brainerd
  • Published 1999
  • Biology
  • Experimental Biology Online
  • In the traditional view of vertebrate lung ventilation mechanisms, air-breathing fishes and amphibians breathe with a buccal pump, and amniotes breathe with an aspiration pump. According to this view, no extant animal exhibits a mechanism that is intermediate between buccal pumping and aspiration breathing; all lung ventilation is produced either by expansion and compression of the mouth cavity via the associated cranial and hyobranchial musculature (buccal pump), or by expansion of the thorax… CONTINUE READING
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