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A Treatise on Physiology and Hygiene

For Educational Institutions and General Readers

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Published: 1870
Language: English
Wordcount: 81,869 / 261 pg
Flesch-Kincaid Reading Ease: 72.1
LoC Categories: QP, LT
Downloads: 753
Added to site: 2010.11.05
mnybks.net#: 29462
Genre: Science
Excerpt

owever slight. The bones, having great strength and power of resistance, afford the protection required.

[Sidenote: 2. The more delicate the organ? Example in relation to the brain? The eye? The lungs? The services performed by the bones?]

2. The more delicate the organ, the more completely does Nature shield it. For example: the brain, which is soft in structure, is enclosed on all sides by a complete box of bone; the eye, though it must be near the surface of the body to command an extensive view, is sheltered from injury within a deep recess of bone; the lungs, requiring freedom of motion as well as protection, are surrounded by a large case of bone and muscle. The bones serve other useful purposes. They give permanence of form to the body, by {16} holding the softer parts in their proper places. They assist in movement, by affording points of attachment to those organs which have power of motion--the muscles.

[Sidenote: 3. Their shape and size? Of what composed? Possibility of being s

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