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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nged. At the same time, have them notehow each dif-fers from thecorrespondingbone in thehuman body. Summariz ethe factsbrought outunder thistopic : The frameworkof the body ismade up of manyparts. These partsdiffer in size,shape and appear-ance, The reason forthese differencesis that each part Show also the stout cords which pass from onebone to another, fastened tightly to each tohold them together. Call attention to the difference in size be-tween the middle of a long bone and its twoends, and help the class to think of the reasonfor this. Let each one move first one part of his bodyand then another until he knows which bonesare movable and which are not. Take breath-ing exercises in this connection, letting thepupils try to see which one of them can mostexpand his chest. Help the class to put into the form of com-plete statements the facts considered under thistopic : The many different bones which form the skeletonneed to be fastened together. The places where the bones are called
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has kind do. differentwork to • There a darling baby lay. pillowed soft upon the hay; While the Miother sang and smiled, •• This is Christ, the holy Child. fastened arejoints. Strong cordshold the bonestogether. A hinge joint,like that at theknee or elbow,lets the bonesmove in two direc-tions, up anddown. A mixed joint,like that at thewrist, lets thebones move upand down andpart way aroundeach other, A ball and sock-et joint, like thatat the shoulderor hip, lets thebone move in alldirections. A fixed joint,like that of thebones of the skull,allows no motion* METHODS OF JOINING BONES but holds the bones tightly together. After finding that the framework of the bodyis made up of a large number of bones of allshapes and sizes, the next thing to learn is howall these pieces are fastened together. Usearticles of furniture or tools in illustration, adoor, a jack knife, a swinging blackboard, thesides and ends of a desk drawer. Explain the advantages of these differentkinds of joinings

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