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Of course, even at home, the sodium chlorid and calcium chlorid baths may be given, and one may obtain the salts all prepared to make the carbon dioxid bath; the exercises may be given, and walking on various ascending grades may be inaugurated. All patients will be more or less benefited, provided they will carry out the treatment.
Most races that have wheat, however, have hit upon a plan for overcoming this heaviness and sogginess, and that is the rather ingenious one of mixing some substance in the dough which will give off bubbles of a gas, carbon dioxid, and cause it to puff up and become spongy and light, or, as we say, "full of air."
The crust is really the most nourishing part of the loaf, as well as the part that gives best exercise to the teeth. Making Bread with Soda or Baking-Powders. Another method of giving lightness to bread is by mixing an acid like sour milk and an alkali like soda with the flour, and letting them effervesce and give off carbon dioxid. This is the mixture used in making the famous "soda biscuit."
The ferment, whether it be the commonly used brewer's yeast, or any other species of alcoholic ferment, has the power to decompose or break down a large part of the sugar present in the liquid into alcohol, which remains as a poison, and carbon dioxid, which escapes more or less completely.
The hypodermic administration of epinephrin solutions, 1:10,000, or solutions of pituitary extract, 1:10,000, should be considered; they are often valuable. If the shock occurs in ether or chloroform anesthesia, the vasopressor stimulating effect of inhalations of carbon dioxid gas may be considered, as advised by Henderson."
If your teacher has a glass of limewater, and will let you breathe into it through a tube, you will see that your breath soon makes the water look milky. This shows that the gas in your breath is not like the air about you; because air was all over the top of the limewater, yet did not change it at all. The milky look is caused by carbon dioxid, one of the poisons in your breath.
Ex cre'tion. A waste substance thrown out, or rejected, from the system; for example, carbon dioxid, sweat, ur'ine, the fe'ces. Lar'ynx. The enlargement of the windpipe, near its upper end, across which are stretched the vocal cords. Lungs.
It is possible that some of the constituents of the expired air are of an allied nature. At all events, these substances have an injurious action, for an atmosphere containing simply one per cent of pure carbon dioxid has very little hurtful effect on the animal economy, but an atmosphere in which the carbon dioxid has been raised one per cent by breathing is highly injurious.
The final oxidation products of the carbon and hydrogen are carbon dioxid and water, which result from the decomposition of the carbonic acid. "Now the various acids of carbon and nitrogen constitute one of the most important factors in soil fertility.
Man appropriates from environment the energy he requires in the form of crude food which is refined by the digestive system; oxygen is taken to the blood and carbon dioxid is taken from the blood by the respiratory system; to and from the myriads of working cells of the body, food and oxygen and waste are carried by the circulatory system; the body is cleared of waste by the urinary system; procreation is accomplished through the genital system; but none of these systems was evolved primarily for the purpose of transforming potential energy into kinetic energy for specific ends.
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