Object Lessons on the Human Body - A Transcript of Lessons Given in the Primary Department of School No. 49, New York City by Sarah F. Buckelew;Margaret W. Lewis
page 46 of 131 (35%)
page 46 of 131 (35%)
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What wonderful muscle moves without your will?--"The heart."
How does alcohol hurt the heart?--"It makes it beat too fast." How does "beating too fast" hurt the heart?--"It makes it tired, and sometimes wears it out." See Appendices on Alcohol and Tobacco. * * * * * [Illustration: THE SKIN (very highly magnified).--(From Walker's _Physiology_, 1884.)] A, arteries; V, veins; N, nerves; F, fat cells; E, the outer skin; CL, the color layer; D, the true skin; PT, a perspiratory tube; HF, a hair and hair sac; EP, muscles; SG, oil glands; TC, tactile corpuscles; CT, connective tissue. * * * * * PART VII. FORMULA FOR THE LESSON ON THE SKIN. 1. My skin covers my body. 2. It is thin, elastic, flexible, porous, and absorbent. 3. I have two skins; the inner skin is the true skin. 4. My true skin is elastic, and like a net-work of blood-vessels and |
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