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Biomedical subjects

C Gans

Publications and source records attributed to C Gans.

53 records · Page 3Linked to original sources
PubMed1972

The ear and hearing in Bipes biporus.

The sound conduction system of Bipes biporus is unusual among amphisbaenians, in that the columella does not have a catilaginous or bony extra-columella passing laterally to the labial skin. Instead, the terminal disk of the columella ends in fibrous tissue beneath a deep fold of skin forming the nuchal constriction. The occurrence of an epihyal supports earlier suggestions that the amphisbaenian extracolumella may be homologous to the epihyal. Measurements of cochlear potentials, made by direction of the sound stimuli to the region of the head posteroventral to the quadrate bone, show that Bipes biporus ranks high among amphisbaenians in auditory sensitivity.

Animals↗
PubMed1969

Bullfrog (Rana catesbeiana) ventilation: how does the frog breathe?

Two short-term cyclic events, buccal oscillations and ventilatory cycles, occur in the bullfrog's respiration. Dutring ventilation the frog fills the buccal cavity with air, then blows the pulmonary contents through the buccal cavity, and finally closes the nostrils while pumnping the buccal contents into the lungs. The pulmonary efflux streams by the buccal contents with minimal mixing, and relatively pure air is pumped into the lungs. Buccal oscillations serve mainly to flush out the buccal cavity between ventilatory cycles.

Air↗