The aim of this study was to determine plasma enzymogram reference values in bullfrog,
Rana catesbeiana, to correlate them with physiological modifications attributable to sex …

Haldane and Priestley (1905) discovered that the ventilatory control system is highly
sensitive to CO 2. This “CO 2 chemoreflex” has been interpreted to dominate control of …

It is well established that arterial pH decreases with increased temperature in amphibians
and reptiles through an elevation of arterial P CO 2, but the underlying regulation remains …

Estivation is accompanied by a reduction of oxygen consumption in amphibians during
drought. We tested the hypothesis that, during the dry season, the toad Bufo paracnemis …

A total of 302 samples of healthy farm-cultured Rana catesbeiana specimens (9-21 months-
old, 50-350 g liveweight, 50% each sex) from the north-east of Argentina, were analyzed …

Tras efectuar una sucinta actualización sobre aspectos fisiológicos de la reproducción,
crecimiento, alimentación, respiración, circulación, osmolaridad, termorregulación y …

The locus coeruleus (LC) has been suggested as a CO2 chemoreceptor site in mammals.
This nucleus is a mesencephalic structure of the amphibian brain and is probably …

The first third of incubation is critical for embryonic development, and environmental
changes during this phase can affect the physiology and survival of the embryos. We …

For an adequate blood supply to support metabolic demands, vertebrates regulate blood
pressure to maintain sufficient perfusion to avoid ischemia and other tissue damage like …

The locus coeruleus (LC) is a chemoreceptive brain stem region in anuran amphibians and
contains neurons sensitive to physiological changes in CO2/pH. The ventilatory and central …