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All the visceral actions which keep us alive from moment to moment, the movements of the heart and lungs, the contractions of arteries, the secretions of glands, the digestive operations of the stomach and liver, belong to the class of reflex actions.
Exposure to the weather, wind, and rain result in its disappearance, fragment by fragment, so that old nests preserve no trace of it. At first sight one is tempted to regard this snowy substance as of a different material to the rest of the nest. But does the Mantis really employ two secretions? No. Anatomy, in the first place, assures us of the unity of the materials of the nest.
In those parts of the lungs that are not used, slimy secretions accumulate, irritating the air cells and other tissues, which become inflamed and begin to decay. Thus a luxuriant soil is prepared for the tubercle bacillus, the pneumococcus and other disease-producing bacilli and germs.
If we connect these two influences, the annual and diurnal successions of cold and heat, in their joint effect, we find, that about, or a little after the summer solstice, the influence of the sun being at its maximum, the nervous sensibility, heat, circulating excitement, and cutaneous secretions of the body, are also at their maximum.
To the student of the internal secretions the lines, expressions, attitudes are important for they tell of the state of tensions and strains in the vegetative apparatus with which they are inseparably connected. It is when one comes to the consideration of the face as a complex of brows, eyes, nose, lips and jaws that he becomes most interested.
As a result, forty years elapsed before the implications of his studies were rediscovered by the Columbus of the modern approach to the internal secretions, the American Frenchman, Brown-Séquard.
For such an expenditure of energy they must receive nourishment and stimulation. The nourishment is supplied by the albumin and proteid of the vesicular and prostatic secretions. The stimulation is supplied by the salts also secreted by these glands. The recent researches of Loeb and others have demonstrated the importance of mineral salts in stimulating the activity of living cells.
He should be instructed to take every possible opportunity of placing the limb in an elevated position, and must constantly wear a firm bandage of elastic webbing. This webbing is porous and admits of evaporation of the skin and wound secretions an advantage it has over Martin's rubber bandage.
I don't myself much mind what morals a man teaches, so long as he preserves the morality of beautiful form, but at the rate we are now going, literature seems likely to become a series of causes célèbres chronicled in the language of the penny-a-liner. And over and above this is the dirty habit, growing upon many able men, of examining their secretions, always an evident sign of hypochondria.
I'm not at all sure that humanity oughtn't to be hackled like weeds, and so toughen its hold on life. Germs may be blessings in disguise." Clarke pursued his way. "How little we know about their reactions their secretions. You've given some attention to the X-ray and its effect on these cells, I presume?"
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