This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...fats is abundant; if they are not present in sufficient quantity to meet the increased demand for energy-supplying materials, then the proteids must be oxidized to furnish it, and the urea discharged is increased. In striking contrast to the constant output of urea is the largely increased output of CO2, ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...fats is abundant; if they are not present in sufficient quantity to meet the increased demand for energy-supplying materials, then the proteids must be oxidized to furnish it, and the urea discharged is increased. In striking contrast to the constant output of urea is the largely increased output of CO2, representing oxidation of the carbohydrates and fats. During sleep the nitrogenous output is not materially diminished, while that of CO2 is markedly less. This is explained by the fact that there is less energy needed and correspondingly less oxidation of the energy-producing materials. Proteid metabolism is undisturbed. A low external temperature does not increase the output of urea; it increases the output of CO2. These two facts together mean again that only the carbohydrates and fats are being oxidized in increased amount. This increased oxidation, the effect of which is to maintain the normal body temperature is usually dismissed with the statement that it is a reflex nervous act. It is claimed by Johannson that the CO2 output is not increased until shivering occurs (Reichert). That being the case, the increase is explained on the ground of increased energy and heat production incident to muscular exercise, and shivering assumes the dignity of a physiological factor in keeping up the temperature of the body. This is perfectly reasonable when it is remembered how effective active muscular exercise is in keeping the body warm. But the fact that a person when cold shivers and is restless involuntarily does not allow us to escape the unsatisfactory "reflex action" explanation of the phenomenon in question. Within ordinary and reasonable limits proteid metabolism is undisturbed; it is still being protected by the fats and...
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Good. Good hardcover. No DJ. RARE ORIGINAL 1916 PRINTING. Illustrated. Pages are clean and unmarked. Covers show light edge wear with rubbing/light scuffing. Binding is tight, hinges strong.; 100% Satisfaction Guaranteed! Ships same or next business day!
