Evolution of the dinosauriform respiratory apparatus: new evidence from the postcranial axial skeleton.

@article{Schachner2011EvolutionOT,
  title={Evolution of the dinosauriform respiratory apparatus: new evidence from the postcranial axial skeleton.},
  author={E R Schachner and Colleen G. Farmer and Andrew T McDonald and Peter Dodson},
  journal={Anatomical record},
  year={2011},
  volume={294 9},
  pages={1532-47}
}
Examination of the thoracic rib and vertebral anatomy of extant archosaurs indicates a relationship between the postcranial axial skeleton and pulmonary anatomy. Lung ventilation in extant crocodilians is primarily achieved with a hepatic piston pump and costal rotation. The tubercula and capitula of the ribs lie on the horizontal plane, forming a smooth thoracic "ceiling" facilitating movement of the viscera. Although the parietal pleura is anchored to the dorsal thoracic wall, the dorsal… CONTINUE READING
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