Identifier: horseitstreatm05axej (find matches)
Title: The horse, its treatment in health and disease with a complete guide to breeding, training and management
Year: 1906 (1900s)
Authors: Axe, J. Wortley
Subjects: Horses
Publisher: London, Gresham Pub. Co.
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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ord-like variety are met with in the extremities, where the moreimportant extend from above the knees and hocks downward to the feetand pasterns. Some tendons are partly or completely surrounded by a fibrous .sheath,and this is lined by a synovial membrane, which, being also reflected on to MUSCLES OF THE FACE AND HEAD 307 the tendon, enables the hxtter to nio\e freely through the former. This ismore especially the case in the vicinity of joints, as the knee, hock, andfetlock, where movement is most active. Where tendons play over pro-jecting points of bone or other prominences, a small, round .sac lined with.synovial membrane is placed between them to facilitate the movement ofthe one over the other. These are known as synovial l)ur.<£e. MUSCLES OF THE FACE AND HEAD The muscles of the ftice comprise a number of longer or .shorter strips,most of which are attached by one extremity to the bones above, and bythe other to parts about the lips and nostrils below. Those attached to the
Text Appearing After Image:
Fig. 371.—Muscles of Horses Head A, Temporalis muscle. B, Levator palpebrae. c. Orbicularis palpebrarum. D, Supernaso-labialis orLevator labii superioris alseque nasi. E, Supennaxilo-labialis or Levator labii sui>erions proprius.F, Supermaxilo-nas.ilis or Dilator nans lateralis. G, Orbicularis oris. H, Mento-labialis. i, Maxilo-labialisor Depressor labii inferioris. J, Zygomaticns. K, Buccinator. L, Parotid duct. M, Masseter muscle.X, Parotid gland, o, .Jugular vein. P, JIa.stoido-huraeralis muscle. former are for the most part muscles of prehension, and serve to gather upthe food and retain it in the mouth during mastication. With one or twoexceptions the muscles of the face are arranged in pairs, one lieing on oneside and the other on the other. When in action some of them draw the lips upwards, others acting inan opposite direction pull them downwards, hence they are called levatorsand depressors respectively. The orifice of the mouth is acted upon by a single mu.scle thatenci

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