File:A treatise on anatomy, physiology and hygiene - designed for colleges, academies and families (1850) (14598107548).jpg

Identifier: treatiseonanatom00cutt (find matches)
Title: A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families
Year: 1850 (1850s)
Authors: Cutter, Calvin, 1807-1873?
Subjects: Physiology Anatomy Hygiene Anatomy Physiology Hygiene
Publisher: Boston : B.B. Mussey
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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, Fig. 50. A proper position in sitting. 203. Tlie child sJiouId he taught to sit ertct lohen employedin study or work. This attitude favors a healthy action of thevarious organs of the system, and conduces to beauty andsymmetry of form. Scholars are more or less inclined to leanforsvard and place the elbow on the table or desk, for support; 20S. Why should the erect attitude be assumed in sitting ? 100 ANATOMY, PHTSIOLOGV, AND HYGIENE. and this is often done when tlicir seats are provided withbacks. Where there is a predisposition to curvature of thospine, no poshion is more unfavorable or more productive ofdeformities than this ; for it is usually continued in one direc-tion, and the apparent deformity it induces is a projection ofthe shoulders. If the girl is so feeble that she cannot sit Fig. 51.
Text Appearing After Image:
Fig. 51. An improper position in sitting. erect, as represented by fig. 50, let her stand or recline on acouch; either is preferable to the position represented by fig.51. In furnishing school-rooms, care should be taken thaithe desks are not so low as to compel the pupils to leanforward in examining tVieir books. HYGIENE OF THE MUSCLES. 101 204. Tht muscles^ when exhausted., cannot endure continuedeffort. When the energies of the muscular system have beenexpended by severe and long-continued exercise, or the brainand nervous system prostrated by protracted mental cfibrt, themuscles are unfitted to maintain the body erect in standing orsitting for a long time, as the nervous system, in its exhaustedstate, cannot supply a sufficient amount of its peculiar influ-ence to maintain the supporting muscles of the body and lieadin a state of contraction. Hence, a child or adult, when muchfatigued, should not be compelled to stand or sit erect in oneposture, but should be permitted to vary the

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