. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. r 460 COMPARATIVK PHYSIOLOOf. â ented flnally m oarbonio anhydride and wator principally, protelds ai urea. Nitro|{enous foodi may be regarded a« accelerating the metabolic prooeami generally and proteid metaboliam in par- ticular, while fats have the reverM eifect; hence fat in the diet render* a lew quantity of proteid miffloient. Oelatin neema to act when mixed with protei
. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. r 460 COMPARATIVK PHYSIOLOOf. â ented flnally m oarbonio anhydride and wator principally, protelds ai urea. Nitro|{enous foodi may be regarded a« accelerating the metabolic prooeami generally and proteid metaboliam in par- ticular, while fats have the reverM eifect; hence fat in the diet render* a lew quantity of proteid miffloient. Oelatin neema to act when mixed with proteid food either like an additional quantity of proteid, or pooribly like fat, at all events under mich ciroumatanoea leaa proteid aufflcea. These facta have a bearing not only on health but on econ- omy, in the expenditure for food. EMta hold a very important place in every diet, though their exact influence ia in great part unknown. The heat of the body ia the resultant of all the metabolic proceaaea of the organiam, especially the oxidative onea. Certain food-atuffa have graater potential capacity for heat formation than othera ; but. Anally, the result depends on whether the organism can best utilise one or the other. A certain body temperature, varying only within narrow limits, is maintained, partly by regiUation of the supply and partly by the regulation of the loss. ^th these are, in health, under the direction of the nervous aystem, and both are co-ordinated by the same. Loss is chiefly through the skin and lungs ; gain chiefly through the organs of most active metabolism, as tlie muscles and glands. Vaso-motor effects play a gteat part in the escape of heat. Animals may be divided into poikilothermers and homoio- thermers, or cold-bloodud and warm-blooded animals, accord- ing as their body heat varies with or is independent of the ex- ternal changes of temperature. All the facts go to show that in mammals the j^rooesses of the body (metabolism) can con- tinue on
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1890, bookyear1890
