File:Anatomy, physiology and hygiene (1890) (14577957577).jpg

Identifier: anatomyphysiolog00mayc (find matches)
Title: Anatomy, physiology and hygiene
Year: 1890 (1890s)
Authors: May, Charles Henry, 1861-1943
Subjects: Human anatomy Physiology Hygiene, Popular. (from old catalog)
Publisher: New York, W. Wood and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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interior of the ear areonly a fraction of an inch in length. Some of those of the eyeare about an inch in length, while the longest muscle is onewhich extends from the hip to below the knee ; it is over twofeet in length. Between these two extremes there are manydifferent sizes. 86. A Few Important Mus-cles.—It is not necessary for you toremember the names of many of themuscles, but there are a few whichare worth knowing about, becausethey are important, and because weoften see them mentioned in booksand in newspapers. They are the fol-lowing : 87. The Biceps is the large fleshymuscle on the front of the arm, whichbends the forearm upon the arm(Figs. 30 and* 31). It can be feltupon making this motion. 88. The Triceps is the muscle ofconsiderable size which can be feltupon the back of the arm. It serves to straighten out the forearm after the biceps has bent it 89. The Chest-muscle, or Pectoralis (Fig. 30), forms the prominence at the upper part of the chest on each side. It is trian
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Fig. 31.—The Biceps and Tri-ceps Muscles. 56 ANATOMY, PHYSIOLOGY, AND HYGIENE. ■ gular in shape, like a fan. It draws the arm inward across thechest. 90. The Diaphragm is the sheet of muscle which separatesthe cavity of the chest from that of the abdomen. It is ofgreat importance, and is one of the principal muscles concernedin breathing ; it is an involuntary muscle. 91. The Tendon of Achilles. — This isthe strong, thick cord which you can feel atthe back and lower part of the leg, just abovethe heel. It is the end of a very large andpowerful muscle which raises the heel whenwe walk. It has received its name from thefollowing story: Achilles was a Grecian hero.There was supposed to be a river, the Styx, ofwhich it was said that whoever bathed in itswaters could not be wounded. The mother ofAchilles wishing to preserve her son from allfuture danger, dipped him into this river Styx,holding him by the heel. All parts of his bodywere wet except the heel by which he was held,and at

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