. The principles and practice of veterinary surgery . e injury is limited to one nerve, as is moreusually the case, the lips wiU be drawn from the affected side,and the horses mouth will appear crooked. The seventh pair of nervus convey the motor power to avariety of muscles, but more particularly, as bearing upon thesubject now under consideration, to those of the lips, nose, andlower part of the face. These nerves pass out of the craniumby the stylo-mastoid foramen of the petrous temporal bone; atfirst deeply buried under the parotid glaud, they afterwardspass between the glands and guttural
. The principles and practice of veterinary surgery . e injury is limited to one nerve, as is moreusually the case, the lips wiU be drawn from the affected side,and the horses mouth will appear crooked. The seventh pair of nervus convey the motor power to avariety of muscles, but more particularly, as bearing upon thesubject now under consideration, to those of the lips, nose, andlower part of the face. These nerves pass out of the craniumby the stylo-mastoid foramen of the petrous temporal bone; atfirst deeply buried under the parotid glaud, they afterwardspass between the glands and guttural pouches, to gain the pos-terior border of the lower jaw, round the neck of which theyturn, and, mounting to the external surface of the massetermuscle, run downwards on the cheek quite subcutaneously. Inwell-bred fine-coated horses they can be seen very plainly onthe sides of the cheeks, and being thus superficially situated,are liable to be injured by the pressure of a heavy ill-fittingbridle. The injury causes inflammation of the nerve (neuritis). PARALYSIS 0> THE LIP. ( .,(11.) PARAiYSIS OF THE LIPS. 501 ajid its neurilemma, with swelling and exudation. The exudatepressing upon the substance of the nerve, adds to the alreadyexisting loss of function. If the cheeks are carefully manipu-lated, the swollen nerves can he distinctly felt. I have frequently seen cases of paralysis of the lower Hpalone, and this is due to the effect of a too tight kinch orcavil, when put on or by being suddenly jerked tight.—(Seeplate.) Treatment.—Eemoval of all pressure from the head and the animal is tied in the stall by a head-coUar, this must beremoved and replaced by the neck-strap; or what is better, itshould be turned loose into a box. The pressure of the headcollaT may seem trivial, but it is sufficient to retard the progressof recovery for an indefinite period. The food should be soft,and placed in a convenient position; a deepish manger is thebest, as the horse is apt
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectveterin, bookyear1904
