File:The school physiology journal (1902) (14584572598).jpg

Identifier: schoolphysiology12bost (find matches)
Title: The school physiology journal
Year: 1902 (1900s)
Authors:
Subjects: Physiology Hygiene Temperance Physiology Hygiene Temperance
Publisher: Boston : Mary H. Hunt
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and the National Endowment for the Humanities

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s areconstantly throwing off—carbonic acid, water,organic matter. Findhow each is harmful to the body. Examine the veinson the back of the hand.What color is the bloodin them ? What coloris the blood when avein is cut ? Give thereason for this differ-ence in the color. The heart is all thetime sending the impure blood of the body to the lungs. There the oxygen we breathe puri-fies it, and so changes its color from dark purpleto bright red, just as it does in a cut where wecan see the change. In this way the organs of breathing are feed-ers of the body as well as scavengers. Writethe name of the substance they supply oppo-site those waste matters which they remove. Find how many in the class ever cured aheadache by going outdoors. How many havefound that they can get a lesson better after re-cess than just before ? How many have everfelt sleepy in church? Call for the reason ineach of these cases. It is estimated that every person ought tohave 600 cubic feet of room and to have all the
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Never ending, but always descending,The water conies down at Lodore. air in this changed five times every hour. Havethe class find how many cubic feet in theirschoolroom there are for each pupil, and howoften it will have to be changed to meet thisstandard. Have all find out the same in regardto their sleeping rooms at home. Ask each tosuggest a means of ventilating, and have thebest written on the board. INJURY FROM ALCOHOLIC DRINKS OR TOBACCO Insistence upon an abundant supply of pureair in the schoolroom and home, until the youthfeels its lack at once when deprived of it, is along step, towards keeping him from the use of tobacco and other nar-cotics. But preciseknowledge of the wayin which these substan-ces harm the breathingorgans and interferewith their work is alsonecessary. Introduce such factswhen discussing each ofthese topics. When theclass learn that thebreathing organs fur-nish the whole bodywith oxygen which itmust have or die, seethat they learn also thattobacco and dri

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