New perspectives on the evolution of lung ventilation mechanisms in vertebrates

@article{Brainerd1999NewPO,
  title={New perspectives on the evolution of lung ventilation mechanisms in vertebrates},
  author={Elizabeth L. Brainerd},
  journal={Experimental Biology Online},
  year={1999},
  volume={4},
  pages={1-28}
}
  • E. Brainerd
  • Published 1 December 1999
  • Medicine, 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… 
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TLDR
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TLDR
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References

SHOWING 1-10 OF 69 REFERENCES
Lung ventilation in salamanders and the evolution of vertebrate air-breathing mechanisms
Abstract Functional analysis of lung ventilation in salamanders combined with historical analysis of respiratory pumps provides new perspectives on the evolution of breathing mechanisms in
The Evolution of Lung-Gill Bimodal Breathing and the Homology of Vertebrate Respiratory Pumps
TLDR
A comparative analysis of actinopterygian and sarcoperygian aerial buccal pumps indicates that the primitive pattern of air transfer differs fundamentally between these two clades, suggesting that the independent evolution from different aquatic buCCal pumps may be due to their independent evolution to a single aerialbuccal pump.
Mechanics of lung ventilation in a larval salamander Ambystoma tigrinum.
  • E. Brainerd
  • Environmental Science
    The Journal of experimental biology
  • 1998
TLDR
Exhalation in larval tiger salamanders is active, powered by contraction of all four layers of lateral hypaxial musculature, and Electromyography indicates that the transverse abdominis (TA) muscle is active for the longest duration and shows the highest-amplitude activity, but the externally oblique superficialis, the external oblique profundus and the internal oblique also show consistent, low-level activity.
Ventilatory Mechanisms of the Amphibian, Xenopus Laevis; The Role of the Buccal Force Pump
TLDR
The buccal phase of inspiration occurs after expired air has passed from the lung and buCCal cavity, in comparison to the ranids and bufonids which inspire fresh air into the buccAL cavity before expiration.
Mechanics of lung ventilation in a large aquatic salamander, siren lacertina
  • Brainerd
  • Medicine
    The Journal of experimental biology
  • 1998
TLDR
Results indicate that the use of the TA for exhalation is a primitive character for salamander and support the hypothesis that the breathing mechanism of salamanders represents an intermediate step in evolution between a buccal pump and an aspiration pump.
Mechanism of lung ventilation in the caecilian Dermophis mexicanus
The pattern of lung ventilation in the terrestrial caecilian Dermophis mexicanus was investigated by recording pressure changes of buccal and pleuroperitoneal cavities and activity of the buccal
A functional analysis of the aquatic and aerial respiratory movements of an African lungfish, Protopterus aethiopicus, with reference to the evolution of the lung-ventilation mechanism in vertebrates.
  • B. Mcmahon
  • Environmental Science
    The Journal of experimental biology
  • 1969
TLDR
The evidence suggests that the air-breathing mechanism of the tetrapods was powered by a buccal force-pump mechanism which evolved directly from the aquatic system, and the evolution of a new mechanism for lung ventilation in the prototetrapods is considered unnecessary.
Form and Function of Lungs: The Evolution of Air Breathing Mechanisms
TLDR
Experimental analyses have established that in lower vertebrates lungs are ventilated with a buccal pulse pump, which is driven by identical sets of muscles acting in identical patterns in fishes and frogs, and that respiratory and locomotory patterns are coupled, further maximizing the efficiency of mammalian respiration.
Breathing movements in the frog Rana pipiens. I. The mechanical events associated with lung and buccal ventilation.
The normal pattern of breathing movements in Rana pipiens has been studied by recording pressure and volume changes in the buccal cavity and lungs, and electromyograms from the muscles involved in
The muscular basis of aerial ventilation of the primitive lung of Amia calva.
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