File:The Horse - its treatment in health and disease, with a complete guide to breeding, training and management (1905) (14798332063).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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om-parison with those of man, and a very little study of the engraving willcorrect some popular errors, such, for instance, as refer to the position ofthe knee of the horse. The real knee of the animal is, in the phraseologyof the horseman, the stijle-joint, and the joint which is usually called theknee of the horse is in reality the wrist. The letters in the illustrationindicate the true shoulder, elbow, wrist, hip, knee, and ankle in both manand horse. Commencing with the fore parts of the skeleton, we wall first notice the 486 THE HORSES POSITION IN THE ANIMAL WORLD joint which is called the wrist or carjnis, the knee of the horse as it iswrongly named. In this two rows of small bones are arranged, as canbe seen in the figure, between the arm-bone above and the shank-bonesbelow, the latter consisting of one large bone and two small splint-bonesattached to it. In man the corresponding arrangement conduces to a veryimjDortant end—a series of movements in tlie hand and arm which are
Text Appearing After Image:
Fig. 655.—Comparative View of Skeletons of Man and Horse S, Shoulder-joint; E, elbow-joint; w, wrist-joint (so-called knee in the horse); H, hii>-joint; K, knee(stifle-joint in the horse); A, ankle (hock-joint in the horse). mechanically impossible in the horse, notwithstanding the apparent simi-larity of structure. The hand of man constantly performs the movements of flexion andextension, as they are called (these being hinge-like motions with extensivelateral movement), and in addition almost perfect rotation, at least to theextent of two-thirds of the circle. On the other hand, the horses wristor knee is only capable of flexion and extension. Nearly the same degree and exactly the same variety of movement are SPECIAL FEATURES IN STRUCTURE 487 possible in tlie elbow-joint of man, while in the horse, owing to the rudi-mentary form of the second bone of the arm (the ulna), no lateral or rotatorymotion can take place. The movement is purely hinge-like. Another marked peculiarity i

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