[Dynamics of the coupling of ventilation and circulation in the lungs of cats exposed to elevated environmental temperatures].
The 1.5-hr exposure of cats to air temperature 50 degrees C led to an increase in respiration rate, ventilation of the respiratory dead space and in intensity of water evaporation from the upper respiratory tract. Increase of the body temperature up to 39.4 degrees C induced no drop in the lung gas exchange efficiency because of the balanced growth of the lung ventilation and blood flow. Further increase of the body temperature (up to 41.9 degrees C) injured the gas exchange function as revealed by a drop in the arterial blood oxygenation and acid--alkaline imbalance (the respiratory alkalosis with metabolic acidosis).
D000136:Acid-Base Equilibrium; D000818:Animals; D001831:Body Temperature; D002302:Cardiac Output; D002415:Cats; D006400:Hematocrit; D006358:Hot Temperature; D008176:Lung Volume Measurements; D010100:Oxygen / Q000097:blood; D011652:Pulmonary Circulation; D012119:Respiration; D014870:Water Loss, Insensible
D010100:Oxygen
Dinamika sopriazheniia ventiliatsii i krovotoka v legkikh u koshek pri povyshennoĭ temperature vneshneĭ sredy.