Primer Of Physiology And Hygiene; A Text-book For Primary Classes With Special Reference To The…

Paperback | February 6, 2012

byWilliam Thayer Smith

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1885. Excerpt: ... CHAPTER X. THE FRAMEWORK. Sect. I.--1. Thus far we have been studying the soft parts of the body. When they are taken away, the bony frame remains. A skeleton is a ghastly object. But, if you had no bones under your flesh, you could not walk, or even stand. The § skeleton protects the brain and the spinal cord, and the heart and lungs, and other parts, in its cavities. 2. Man and the quadrupeds, and birds and fishes, are all alike in this: they all have bony frames, and all have backbones. The backbone is made up of small bones called vertebra; and man, and all animals with a backbone, are called vertebrates. Their bony frames are a good deal alike too. The skeleton of a cat has the same parts as that of a man. Her fore-legs correspond to his arms. Her backbone is lengthened out in a tail. Her claws correspond to his fingernails. 3. A ch;ld has many more bones than a man, because some bones that were at first separate grow together as he gets older. A man has about two hundred bones. 4. Some of the bones of the skull are flat. The ribs are flat and curved. The hip-bones are very irregular in shape. The twisted in every direction, and serves us much better than it would if it were all one stiff bone. In every vertebra there is a large hole. When they are joined together, these holes make a canal in the center of the backbone, which is called the spinal canal. The top vertebra fits around a hole in the bottom of the skull. Through this hole, the spinal canal connects with the cavity of the skull. The top vertebra is called the atlas. You can easily find the reason for this name by inquiring of your teacher. 6. The spinal cord is well protected by the backbone, and the brain is well protected by the skull. THE SKULL.--1. Frontal bone 2. Parietal bone....

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1885. Excerpt: ... CHAPTER X. THE FRAMEWORK. Sect. I.--1. Thus far we have been studying the soft parts of the body. When they are taken away, th...

Format:PaperbackDimensions:32 pages, 9.69 × 7.44 × 0.07 inPublished:February 6, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217031706

ISBN - 13:9780217031707

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