Möller's operative veterinary surgery / translated and edited from the second enlarged and improved edition of 1894 by Jno. A.W. Dollar.

Date:
1895
Catalogue details

Licence: Public Domain Mark

Credit: Möller's operative veterinary surgery / translated and edited from the second enlarged and improved edition of 1894 by Jno. A.W. Dollar. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    (4.) PARALYSIS OP THE LIPS. FACIAL PARALYSIS. Lit.: Trofimow, Zeitschrift fiir vergl. Angenhoilk., 1883, p. 158. Gcitzo, Dresd. Ber., 1861, p. 105. Zahn, Oesterr. Vierteljaliresschrift., 1865, p. 79. G tint her, Vix u. iS'ebel., vol. i. p. 325. E11 e n b e r g e r, Archiv fiir wissenscliaftl. ii. pract. Thierlieilkimde, vol. vii. p. 311. Scliunc- berger, Schweizer Archiv, 1883, p. 181. Sohngeii, ThioriirzU. Mitthlg., 1874, p. 136. Degive, Eec. de mud. vcjt., vol. xxxii. p. 2. Lydtin, Jahresbericht., 1881, p. 70. Grebe, Jahrb., 1884, p. 81. T h 0 ni a s s e n ii. H a m b ii r g e r, Jahrb., 1889, p. 88. Y o i g 11 ;i n d e r, Dresd. Ber., 1860, p. 51. ' The facial is the motor nerve of the muscles of the ears, cj'elids, nose, lips, and cheeks. Arising from the pons, it enters the inner ear with the jS. aconsti- CLis, i^asses through the Fallopian canal, and outwards through the stylomastoid foramen of the petrous temporal Irone, penetrates the parotid gland, and then passes over the posterior border of the lower jaw, on the external surface of which it divides. According to their points of origin, the following three portions may be diflferentiated. I. In the Fallopian canal arise : (1) A nerve for the stapedius muscle. (2) A nerve for the chorda tympani. II. At the stylomastoid foramen : (1) The posterior auricular nerve giving twigs to the ccrvico auricuhircs, and the parieto auricularis externus and internus. (2) The middle auricular, distributed to the skin lining tlic interior <»f the ear. III. Thence to the point of termination : (1) Nerve to the occiiiito-styloid, s(ylo-h_yoid, and digaslricus muscles. (2) The zygomatico temporalis nerve gives oil'— (a) The anterior auricular nerves. (A) Twigs to the temporalis muscle. ((■) Twigs to the orbicularis palpebrarum and the external levator pal])ebrarum. (3) The cervical branch, which gives off motor twigs to the depressor of the ear and the superficial cervical muscles, afterwards passes over the external surface of the lower jaw, and, as a motor nerve, supplies the muscles of the nose, lips, am\ cheeks. L'aralysis of tlie facial nerve occurs rather fre(piently in liorses; is commonly confined to one side, often to the nerve supply of the upper lip; the deformity consequently is slight, and the niiscliief may be over- looked. P)Ut (l()ul)le-sided ])aralysis interferes very noticeably with feedin^^-. The cause is most freijuently external injury impairing; the con- ductivity of the nerve. The malady is therefore counnon in horses suffering from sucli illness as colic or injuries from shoeing, and which, in consequence, lie a great deal. Siedamgrotzky first noted that this
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