Hygienic Physiology. a Textbook for the Use of Schools
The book Hygienic Physiology. a Textbook for the Use of Schools was written by author David Francis Lincoln Here you can read free online of Hygienic Physiology. a Textbook for the Use of Schools book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Hygienic Physiology. a Textbook for the Use of Schools a good or bad book?
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Ear. Eye. Digestive organs. Late effects : disease of lungs ;. chronic sore throat. Causes : " exposm-es " of many sorts, heat, cold, dampness ; injudicious manage- ment of children. Preventives ; air, climate, bathing, temperature, lung-exercise, clothing. CHAPTER VIII. THE NEEVOUS SYSTEM. We have seen how the body and the members are made to move; that is, by the muscles. The heart contracts (beats) because it is a muscle. The blood-vessels are encircled with minute muscles, which aid in prop...elling the blood. The stom- ach and bowels have much muscular fibre, with which the food within is pushed onward. Besides these functions, there is the very important one of breathing, which is dependent on muscular action. But muscles of themselves will not do work. They require to be ordered and guided and regulated, and this is the duty of the nervous system. Man is also endowed with what is vulgarly called his " seven senses " or " seven wits " ; they are, in reality, five, — sight, hearing, smell, taste, and touch.
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