The exterior of the horse . sides of thelatter. General Characters.—A molar of the second dentition resembles, ingeneral, a quadrangular prism flattened from within to without, save the first andthe sixth, which have only three sides. We can recognize four faces and twoextremities. It presents, in situ, a free part or crown and an incased part or root : theformer projects above the level of the gums ; the second is deeply implanted inthe alveolus. As there is no line of demarcation between these two parts, it isuseless to describe them separately. THE MOLARS. 627 a. Superior Jaw. Faces.—Each o
The exterior of the horse . sides of thelatter. General Characters.—A molar of the second dentition resembles, ingeneral, a quadrangular prism flattened from within to without, save the first andthe sixth, which have only three sides. We can recognize four faces and twoextremities. It presents, in situ, a free part or crown and an incased part or root : theformer projects above the level of the gums ; the second is deeply implanted inthe alveolus. As there is no line of demarcation between these two parts, it isuseless to describe them separately. THE MOLARS. 627 a. Superior Jaw. Faces.—Each of the molars has its posterior face almost plane. In the sixth, however, the face is constituted by a thick border, concave aboveand behind. The anterior face presents the same general configuration, excepting in thefirst molar, in which it is constituted by an almost rectilinear border, extendingfrom one extremity of the tooth to the other. The external face, E (Fig. 297), has two deep longitudinal grooves, separated E. E. External face. Fig. 297.—Superior molar of re-placement.(Right side. Virgin tootli.)I /. Internal face. | E, I. Surface of friction.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecthorses, bookyear1892
