Ventilation and acid-base balance during graded activity in lizards
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چکیده
منابع مشابه
Ventilation and acid-base balance during graded activity in lizards.
Arterial PCO2, hydrogen ion ([H+]a), and lactate ([L]a) concentrations, rates of metabolic CO2 production (VCO2) and O2 consumption (VO2), and effective alveolar ventilation (Veff) were determined in the lizards Varanus exanthematicus and Iguana iguana at rest and during steady-state treadmill exercise at 35 degrees C. In Varanus, VCO2 increased ninefold and VO2 sixfold without detectable rise ...
متن کاملAcid-base imbalance in lizards during activity and recovery.
1. The effects of treadmill exercise on oxygen consumption (V02), carbon dioxide production (VCO2), arterial blood lactate concentration ([L-]a), arterial blood pH and arterial gas tensions (PaO2 and PaCO2) were measured in 3 species of lizards (Varanus salvator, V. exanthematicus, Iguana iguana) 2. Varanus salvator was exercised 45 min at an intensity which required 85% of its VO2 max. V. salv...
متن کاملVentilation in two species of lizards during rest and activity.
l. Oxygen consumption, ventilation frequency and tidal volume were measured simultaneously in two lizards, Varanus gouldii and Sauromalus hispidus, during rest and maximal activity. 2. Ventilation frequency and tidal volume are almost identical in these species. The greater oxygen consumption during activity of Vat-anus results from a greater oxygen extraction from ventilated air. 3. Increased ...
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an increase in the number of poisonings occurring in the province or from an increase in the number of enquiries with no change in the number of poisonings. (ii) there was an increase in 1976 in the number of prescriptions dispensed and therefore an increase in the number of drugs consumed. (iii) the increase in enquiries about poisoning in children, if it reflects an increase in actual poisoni...
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The acidosis that occurs during clinical anaesthesia was formerly thought to be metabolic in origin because of inefficient carbohydrate breakdown in the unconscious state (Van Slyke, Austin, and Cullen, 1922). More recent authors (Taylor and Roos, 1950; Beecher and Murphy, 1950) have suggested that the acidosis is respiratory, due to defective ventilation, and the present work was undertaken to...
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ژورنال
عنوان ژورنال: American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
سال: 1981
ISSN: 0363-6119,1522-1490
DOI: 10.1152/ajpregu.1981.240.1.r29