File:The Horse - its treatment in health and disease, with a complete guide to breeding, training and management (1905) (14776123684).jpg

Identifier: horseitstreatmen09axej (find matches)
Title: The Horse : its treatment in health and disease, with a complete guide to breeding, training and management
Year: 1905 (1900s)
Authors: Axe, J. Wortley
Subjects: Horses
Publisher: London : Gresham
Contributing Library: Webster Family Library of Veterinary Medicine
Digitizing Sponsor: Tufts University

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y marked,as shown in the two illus-trations (figs. 660 and661) from Sir W. Flowersbook. The letters of reference inthe two figures are the samein both, and indicate thesame bones. The remaikabledifference in form of the twoskulls is due to the variationin size and shape of the separate pieces of bone of which the cranial and facial divisions of theskull are composed. Most noticeable is the vast difference in size of the cranium of manas comjjared with that of the horse. There is no difficulty in recognizingthe fact that the facial division of the horses skull, the part which ismainly used for the mastication of the food, is developed enormouslyout of proportion to the cranial division in which the brain is lodged—the centre of whatever degree of intelligence the animal may possess,and the source of some of the most important nerves. In man theconditions are exactly the opposite. The cranium is of immense capacitycompared with the insignificant proportions of the facial bones, yet it
Text Appearing After Image:
i /■ Fig. 661.—Side View of the Skull of the Horse, withthe bone removed so as to show the whole of theteeth and nasal bone n. Nasal bone; o, orbit; :, zygomatic arch; t, temporal fossa;oc, occipital condyle; e m, external auditory opening of glenoidfossa for articulation of the lower jaw; t^ i i^, three incisor teeth;c, canine; pnt, the situation of the first rudimentary premolar,which has been lost in the lower, but which is present in theupper jaw; pni^ piifl pm^, the three fully-developed premolarteeth; vi^ tii- vi^, the three true molar teeth. VOL. III. 97 494 THE HORSES POSITION IN THE ANIMAL WORLD is a fact that there are the same number of bones and a simihxr arrange-ment of them, and in short a general uniformity of the plan of con-struction in l)oth cases, varied in details under the influence, it may bepresumed, of the conditions of existence. With regard to the teeth of the horse some points of considerableinterest have to be noticed. It has already been stated that th

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