. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. 288 COMPARATIVE PHYSIOLOGY. Enamel is made up of elongated hexagonal prisms set almost vertically in the dentine (Fig. 236). It is the hardest suhstance known in the animal body, con- sisting almost entirely of inorganic material ; and when lost is but indifferently if at all 6-1 Fig. 240.—Tooth of cat in situ (Waldeyer). 1, enamel; 3, dentine; 3, cement; 4, peri- osteum of alveolar cavity; 5, tone of jaw; 6, pulp cavity. Dentine is traversed by the d
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. 288 COMPARATIVE PHYSIOLOGY. Enamel is made up of elongated hexagonal prisms set almost vertically in the dentine (Fig. 236). It is the hardest suhstance known in the animal body, con- sisting almost entirely of inorganic material ; and when lost is but indifferently if at all 6-1 Fig. 240.—Tooth of cat in situ (Waldeyer). 1, enamel; 3, dentine; 3, cement; 4, peri- osteum of alveolar cavity; 5, tone of jaw; 6, pulp cavity. Dentine is traversed by the dentine tubules (Fig. 337), which radiate outward from the pulp 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 Mills, Wesley, 1847-1915. New York, Appleton
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