. The horse, its treatment in health and disease with a complete guide to breeding, training and management . iMUSCLES OF THE EXTERNAL EAR 311 triangular cartilaginous plate situated in the front of the base of theconcha, to which it is attached. The cartilages of the ear are for thepurpose of collecting and transmitting sound to the essential organ ofhearing within the temporal l)one, and to eftect this purpose they, andespecially the concha, rccpiirc to be mo\ed in various directions. Thisis effected by means of the following muscles, which are connected withthem:— Zygomatico-Auricularis.—Th
. The horse, its treatment in health and disease with a complete guide to breeding, training and management . iMUSCLES OF THE EXTERNAL EAR 311 triangular cartilaginous plate situated in the front of the base of theconcha, to which it is attached. The cartilages of the ear are for thepurpose of collecting and transmitting sound to the essential organ ofhearing within the temporal l)one, and to eftect this purpose they, andespecially the concha, rccpiirc to be mo\ed in various directions. Thisis effected by means of the following muscles, which are connected withthem:— Zygomatico-Auricularis.—This comprises two thin slips of muscleari.^iii;/ from the zygomatic process of the squamous temporal bone. They. Fig. 372.—Muscles of the Ear. Fig. .SZS.—Muscles of the Ear. Fig. 374.—Muscles of the Ear. (Anterior aspect; outer and deep layers.) iLateral aspect.) (Posterior aspect.) 1, Temporalis. 2, Parieto-auricularis intenius. 3, Parieto-auricularis externus. 4, Scuto-aurioilarisintenius. 5, Zygomatico-auric\ilaris. 6, Scutiform Cartilage. 7, Scuto-auricularis externus. 8, Corru-gator Supercilii. 9, Parotido-auricularis. 10, Splenius. 11, Tendon of Sterno-cleido-mastoideus. 12, Mas-seter. 13, Cervico-auricularis externus. 14, Cervico-auricularis medius. 15, Obliquns Capitis Superior. become inserted into the scutiform cartilage, and into the outer and inferiorpart of the concha. Action.—To draw the ear forward. ParietO-Auricularis Externus.—A broad, thin mu,scle spread overthe superior part of the forehead aud covering the temporalis muscle. Origin.—From the parietal crest or bony ridge in the centre of theforehead. Inseition.—By two slips, one to the inner margin of the scutifo
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecthorses, bookyear1906
