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Fig. 2. Sample recordings of ventilation during 5% hypercapnic anoxic treatment
from two post-prandial American alligators. (A) Data from an alligator with a
transected diaphragmaticus (body mass 93 g). (B) Data from a control alligator
(body mass 94 g). A breath cycle normally begins with an exhalation, followed
by an inhalation and subsequent apnea. Expiration and inspiration occur when
the trace is above and below the solid line (zero marker for airflow),
respectively. The beginning of inspiration has been aligned to better
illustrate the difference between the animals in both time to inspire and
breath size. Calibration bar, 1 s.