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SUMMARY:Loopy Lungs in Alligators - Prof Colleen G. Farmer\, Dept of Biolo
 gy\, Univ of Utah\, Salt Lake City\, USA
DTSTART:20110505T150000Z
DTEND:20110505T160000Z
UID:TALK31038@talks.cam.ac.uk
CONTACT:Christian Scheppach
DESCRIPTION:When birds breathe air flows unidirectionally through most of 
 their gas-exchanging bronchi. This design is often presumed to be unique t
 o birds and to have arisen to meet the high oxygen demands of flight. In\n
 this talk I will discuss recent data showing that airflow is unidirectiona
 l within the lung of the American alligator\, a member of the extant siste
 r taxon of birds. Thus\, airflow probably was\nunidirectional in the lungs
  of basal archosaurs of the Triassic and their descendents: phytosaurs\, a
 etosaurs\, rauisuchians\, crocodylomorphs\, pterosaurs\, and all dinosaurs
  including sauropods\, theropods\, and ornithischians.
LOCATION:Hodgkin Huxley Seminar Room\, Physiology Building\, Downing Site
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