File:First book on anatomy, physiology, and hygiene - for grammar schools and families (1849) (14576544339).jpg

Identifier: 61410640R.nlm.nih.gov
Title: First book on anatomy, physiology, and hygiene : for grammar schools and families
Year: 1849 (1840s)
Authors: Cutter, Calvin, 1807-1873? Cutter, Calvin, 1807-1873?. First book on anatomy and physiology
Subjects: Hygiene Anatomy Physiological Phenomena
Publisher: Boston : Mussey
Contributing Library: U.S. National Library of Medicine
Digitizing Sponsor: Open Knowledge Commons, U.S. National Library of Medicine

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and thus injure the lungs, stomach,and heart. 60. In sitting, the feet of the child should be supported. If 57-63. Give the hygiene of the bones. 57. What effect has exerciseupon the bones ? 58. Give the reasons why the amount of labor should beadapted to the condition of the bones. How can the difference in thestructure of the bones at different ages be iUustrated ? 59. Give a reasonwhy the clothing should be loosely worn. 60. Why should the feet ofchildren, when sitting, be supported ? HYGIENE OK THE BONES. 25 the stool is so high as not to permit ihc feet to rest upon thefloor, the weight of the limbs below the knee may cause theflexible bone of the thigh to become curved. When the feetare not supported, the child is inclined to lean forward, contract-ing an injurious and ungraceful position. Observation. The seats in school-rooms should not only beof such height as to enable the pupil to rest the feet on thefloor, but they should have properly-constructed backs. Fig. 18. Fig. 19.
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Fig. 18. The position assumed when the seat is of proper height, and the feetsupported. Fi<*. 19. The position a child naturally assumes when the seat is so high that thefeet are not supported. 61. Children should stand and sibierect. This position tendsto keep the spinal column erect and healthy. When a slightcurvature of the spine exists, it can be improved by walkingwith a book, or a heavier weight, upon the top of the head ; to Should scats in a school-room have backs? 61. Why should childrenstand and sit erect ? 3 26 ANATOMY, PHYSIOLOGY, AND HYGIENE. balance which, the spine must he nearly erect. Those peoplethat carry their burdens upon their heads seldom have crookedspines. 62. Pupils, while writing, drawing, and sometimes whilestudying, frequently incline the spinal column to one side, inorder to accommodate themselves to the desks at which theyare seated. This position elevates one shoulder, while it de-presses the other. Fig. 20.

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