Journal ArticleDOI
Analysis of gas exchange in the avian lung: Theory and experiments in the domestic fowl
Peter Scheid,Johannes Piiper +1 more
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Measurements of gas exchange in unanesthetized White Leghorn hens showed that arterial PCO2 was lower and arterial PO2 was higher than the corresponding values in end-expired gas, which is explainable by the theory.About:
This article is published in Respiration Physiology.The article was published on 1970-05-01. It has received 105 citations till now. The article focuses on the topics: Pulmonary Diffusing Capacity & Diffusing capacity.read more
Citations
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Journal ArticleDOI
Ventilation/perfusion relationships.
TL;DR: For a review of the application of computer assisted engineering techniques to the traditional concepts and equations of gas exchange, see, e.g., this article, Section 5.1.1].
MonographDOI
Zoo animal and wildlife immobilization and anesthesia.
TL;DR: Zoo Animal and Wildlife Immobilization and Anesthesia - Libros de Medicina - Medicina y Cirugia Animal - 120,96
Journal ArticleDOI
Structure of avian lungs.
TL;DR: Injection casts of the lung air sac system of 155 species of 47 families of birds were studied, together with preparations of fixed specimens of 45 species, finding the effective exchange surface per volume unit is ten times larger than that of comparable mammalian lungs.
Journal ArticleDOI
Gas transport efficacy of gills, lungs and skin: Theory and experimental data
Johannes Piiper,Peter Scheid +1 more
TL;DR: The analysis of gas exchange data obtained in an elasmobranch fish, domestic fowl, dog and a lungless salamander shows that, despite distinct differences in maximum efficiencies of these systems, the differences in efficiency values actually attained are much less pronounced.
Journal ArticleDOI
What it takes to fly: the structural and functional respiratory refinements in birds and bats.
TL;DR: The attainment of flight is a classic paradigm of the remarkable adaptability inherent in organismal and organic biology for countering selective pressures by initiating elegant morphologies and physiologies.
References
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Journal ArticleDOI
Gas exchange in the domestic fowl during spontaneous breathing and artificial ventilation
TL;DR: When the unanesthetized hens were relaxed with succinylcholine and artificially ventilated, using the same tidal volume and frequency as observed during spontaneous respiration, the same values for O2 uptake and for CO2 and O2 partial pressures in arterial blood were measured, indicating unchanged gas exchange efficiency of the respiratory system.
Journal ArticleDOI
Structure and Function of the Lung of Birds
TL;DR: In this paper, it was shown that the assumption that the air currents in a bird lung are controlled by the alternate opening and closing of a large number of valves is wrong in almost every respect.
Journal ArticleDOI
Efficiency of O2 exchange in the gills of the dogfish, scyliorhinus stellaris
J. Piiper,D. Schumann +1 more
TL;DR: In this article, a dogfish, Scyliorhinus stellaris, was anaesthetised with urethane and various respiratory parameters were measured in the dogfish.
Journal ArticleDOI
Responses to alterations in respiratory Po2 and Pco2 in the chicken.
Paula J. Ray,M. R. Fedde +1 more
TL;DR: The chicken may have separate chemoreceptor systems that cause different respiratory responses to hypercarbia than to hypoxia, and the resistance to air flow of the respiratory system was decreased during Hypoxia.