Physiology, hygiene and sanitation, an elementary textbook of physiology, with special attention given to hygiene and sanitation (1919) (14765126285)

Identifier: physiologyhygien00heiz (find matches)

Title: Physiology, hygiene and sanitation, an elementary textbook of physiology, with special attention given to hygiene and sanitation

Year: 1919 (1910s)

Authors: Heizer, W. L. (W. Lucien), b. 1880

Subjects: Physiology Hygiene Sanitation

Publisher: Louisville, Ky., C.T. Dearing Printing Co., Incorporated

Contributing Library: The Library of Congress

Digitizing Sponsor: The Library of Congress

Text Appearing Before Image:

uscles. Whensuch meat is thoroughly boiled it may be torn into stringsor shreds which are called fibers. These fibers arejoined together by connective tissue which unites at theend to form the tendon. Connective Tissue. This is a name applied to the in-elastic tissue which is used for binding every part ofthe body together. It is found everywhere in the body and so finely doesit penetrate it thatif by magic, thebones, muscles andall of the othertissues could bewithdrawn leav-ing connective tis-sue alone therewould be left aperfect mould forevery muscle, boneand organ. A scar,after an injury tothe soft part of thebody, is a collec-tion of connectivetissue cells that na-ture has used tofill up the gap. Thestiffness in a joint after rheumatism is caused by thegrowth of this tissue in the parts which were inflamed.It is one of the supporting tissues of the body and isfound most abundant in all the tendons, ligaments, andsheaths of the body which are used to bind the variousparts together.

Text Appearing After Image:

Fie 22.- -Showing- some of the muscles ofthe head and face. THE MUSCULAR SYSTEM 59 The Muscles and Their Functions. There are more thanfive hundred muscles in the body making up about one-third of the weightof the body. Thereare many shapes ofmuscles to servetheir various pur-poses. The chieffunction of musclesis to produce mo-tion. Many muscles areused in standing orwalking, writing, ortalking. It is by ac-tion of muscles thatblood is pumpedthrough the body orthat air is breathedinto the lungs. Asecond value of themuscles is . to helpprotect the delicateorgans. Large bloodvessels are usuallyprotected by a deepcovering of muscles,and the stomach,liver, kidneys andintestines are in-closed in a cavity which is protected largely by strongmuscles. Thus they aid the bones in protecting delicateorgans.

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1919

Library of Congress

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