The Physiology And Hygiene of the House in Which We Live
The book The Physiology And Hygiene of the House in Which We Live was written by author Marcus P Marcus Patten Hatfield Here you can read free online of The Physiology And Hygiene of the House in Which We Live book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Physiology And Hygiene of the House in Which We Live a good or bad book?
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The tongue, like the fingers, has papillae, or ridges, scattered over it vary- ing in shape according to their location and duties. Three forms of these are known, namely, filiform, fungiform, and circumvallate. The filiform are long and pointed, and probably do little more than roughen the tongue, and thus help it to move the food hither and thither. In the calf these are almost spines, as you have appreciated if you ever happened to get your hand into its mouth when you were feeding " bossy "... salt. These are the papillae which when coated give your tongue its furred look. (See Chapter I, page 18.) ITie fungiform (club- shaped) papillae are found here and there over the front of the tongue, while the fortified or circumvallate are arranged in the shape of the letter V at the base of the tongue. These latter are the chief organs of taste; but just how these little knobs tell us that sugar is sweet and vinegar is sour is more than at present is known, except that it must be done through the filaments of the nerves which cluster over them.
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