First book on anatomy, physiology, and hygiene : for grammar schools and families / by Calvin Cutter.

  • Cutter, Calvin, 1807-1873?
Date:
1859
Catalogue details

Licence: Public Domain Mark

Credit: First book on anatomy, physiology, and hygiene : for grammar schools and families / by Calvin Cutter. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    V CHAPTER VIII. HYGIENE OF THE MUSCLES. 100. TJie muscles should he used and then rested. This <vill increase their size and strength, by increasing the flow of blood to the parts called into action. A muscle should not be used too long, .or remain at rest too long; both are alike injurious. Illustrations. 1st. The blacksmith uses and rests the mus- cles of his arm when striking upon the anvil. They not only become large, but very firm and hard. 2d. The student uses the muscles of the arm but little, in holding his books and pen; they are not only small, but soft. 3d. Let the student leave his books, and wield an iron sledge, and the muscles of his arm will increase in size and firmness. On the other hand, let the blacksmith assume the student's vocation, and the muscles of his arm will become soft and less firm. 101. Exercise should be regular and frequent. The sys- tem needs this means of invigoration as regularly as it does new supplies of food. It is no more correct that we devote several days to a proper action of the muscles, and then spend one day inactively, than it is to take a proper amount of food for several days, and then withdraw this supply for a day. (See note A. page 42.) 102. Every part of the muscular system should have its appropriate share of exercise. Some employments call into 100—118. Give the hygiene of the muscles. 100. Why should every mus- cle be used ? What is injurious to muscles ? How is the effect of using muscles illustrated ? ipi. Why should the exercise of the muscles be regular and frequent ? 102. What employments and amusements are best for the health ?