"Dentition" Quotes from Famous Books
... temporary only—that is, due to an existing condition of the organism, which, whether natural or morbid, is of a transitory character. Such, for instance, are those due to dentition, the commencement or the cessation of the menstrual function, pregnancy, etc. These are frequently of a serious character, and require careful watching, especially as they may lead to derangement of the ... — Scientific American Supplement, No. 358, November 11, 1882 • Various
... more slowly. There is a decided tendency to disappearance of these varieties, fully 50 per cent. undergoing natural cure by a process of obliteration, similar to the obliteration of vessels in cicatricial tissue. This usually begins about the period of the first dentition, sometimes at the second dentition, and sometimes at puberty. On the other hand, an increased activity of growth may be shown at these periods. The onset of natural cure is recognised by the tumour becoming firmer and less compressible, and, in ... — Manual of Surgery - Volume First: General Surgery. Sixth Edition. • Alexis Thomson and Alexander Miles
... belongs to a genus of the family Manatidae, or Herbivorous Cetacea. The species of which a member was discovered by our castaways, is the Halicore Indicus, or dugong of the Indian Archipelago; and, as we have said, is never found very far from land. Its dentition resembles, in some respects, that of the elephant; and from the structure of its digestible organs it can eat only vegetable food; that is, the algae, or weeds, growing on submarine rocks in shallow water. ... — The Castaways • Captain Mayne Reid
... really differ much: thus the dog has on each side of the upper jaw four pre-molars and only two molars; while the Thylacinus has three pre-molars and four molars. The molars also differ much in the two animals in relative size and structure. The adult dentition is preceded by a widely different milk dentition. Any one may, of course, deny that the teeth in either case have been adapted for tearing flesh, through the natural selection of successive variations; ... — On the Origin of Species - 6th Edition • Charles Darwin
... Chimpanzees and the Gorillas. All these have certain characters in common. They are inhabitants of the old world; they all have the same number of teeth as man, possessing four incisors, two canines, four premolars, and six true molars in each jaw, in the adult condition, while the milk dentition, as in man, consists of twenty teeth,—four incisors, two canines, and four molars in each jaw. Since Huxley wrote, a large bulk of additional work upon teeth has been published, and we now know that man ... — Thomas Henry Huxley; A Sketch Of His Life And Work • P. Chalmers Mitchell
... Australia] alone the curious little banded ant-eater (Myrmecobius fasciatus), which presents the nearest approach in its dentition to the most ancient known mammals whose remains are found in the oolite and ... — A Dictionary of Austral English • Edward Morris
... not much earlier than the second month in very strong children, the fifth in weakly ones, up to the commencement of the first dentition; and when once dentition has commenced it is not so safe to operate till it ... — A Manual of the Operations of Surgery - For the Use of Senior Students, House Surgeons, and Junior Practitioners • Joseph Bell
... to the same division of Carnivora as Bears, but differ from them, not only in size, but in dentition. This, while they claim a sort of miniature relationship, forms them into a separate genus. They afford many a day of what is called sport, to those who choose to hunt them, during which they evince much sagacity in their efforts to escape; but I am happy to say the custom ... — Anecdotes of the Habits and Instinct of Animals • R. Lee
... student will probably ask why the cheek teeth, which are all similar in appearance, are divided into premolars and molars. The rabbit has a set of milk molars— a milk dentition— which are followed by the permanent teeth, just as in man. Those cheek teeth of the second set, which have predecessors in the first series, are called premolars; the ones posterior to these ... — Text Book of Biology, Part 1: Vertebrata • H. G. Wells |