. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. DENTAL TISSUES. 3G1 2-7 hardening salts of the enamel are not only present in far greater j)roportiou than in the other dental tissues ; but, in some animals, are peculiarly distinguished by the presence of fluate of lime. Teeth vary in number, size, form, structure, modifications of tissue, position, and mode of attach- ment, in ditferent animals. They are principally adapted for seizing, tearing, dividing, pounding, or grind- ing the food; in some they are modified to serve as weapons of offence and defence; in others,
. On the anatomy of vertebrates. Vertebrates; Anatomy, Comparative; 1866. DENTAL TISSUES. 3G1 2-7 hardening salts of the enamel are not only present in far greater j)roportiou than in the other dental tissues ; but, in some animals, are peculiarly distinguished by the presence of fluate of lime. Teeth vary in number, size, form, structure, modifications of tissue, position, and mode of attach- ment, in ditferent animals. They are principally adapted for seizing, tearing, dividing, pounding, or grind- ing the food; in some they are modified to serve as weapons of offence and defence; in others, as aids in locomotion, means of anchor- age, instruments for uprooting or cutting down trees, or for transport and working of building materials ; ihey are characteristic of age and " '" ^ ^ sex ; and in man they have secondary relations sulDservient beauty and to speech. Teeth are always most intimately related to the food and habits of the animal, and are therefore highly interesting to the physiol- ogist. They form for the same reason most important guides to the naturalist in the classification of animals ; and their value, as zoological characters, is enhanced by the facility with which, from their position, they can be examined in living or recent animals. The durability of their tissues renders them not less available to 238. to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Owen, Richard, 1804-1892; Cornell University. College of Veterinary Medicine. Flower-Sprecher Veterinary Library. fmo. London, Longmans, Green
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