. Dadd's theory and practice of veterinary medicine and surgery. Veterinary medicine. 70 DADD'S VETERINARY MEDICINE AND SURGERY. Tetanus. We recognize tetanus by the unnatural condition of the muscles of various parts of the body, more particularly those of the face and neck. But the fault lies not in the muscles, but in the nervous system. This disease constitutes one of the most terrible and fatal to which the horse is subject. It is not only frightful to look upon, but is productive of the most distressing agony to the THE TEST FOB TETANUS OR LOCKED-JAW. Explanation.—On placing a h
. Dadd's theory and practice of veterinary medicine and surgery. Veterinary medicine. 70 DADD'S VETERINARY MEDICINE AND SURGERY. Tetanus. We recognize tetanus by the unnatural condition of the muscles of various parts of the body, more particularly those of the face and neck. But the fault lies not in the muscles, but in the nervous system. This disease constitutes one of the most terrible and fatal to which the horse is subject. It is not only frightful to look upon, but is productive of the most distressing agony to the THE TEST FOB TETANUS OR LOCKED-JAW. Explanation.—On placing a hand under the angle of the jaw, and pushing the head in an upward direction, the nictitating membrane (haw) will be suddenly thrown partly over the pupil, aa seen in the above picture. This is the diagnostic symptom of tetanus. There is no difficulty in recognizing this disease. It is charac- terized by involuntary and persistent cramps of the voluntary muscles. The muscles which seem first to be affected are those of the jaws, neck, and throat; and soon all the other muscles are in- volved. One of the principal tests for the discovery of the disease is to place a hand under the jaw and raise the head. Immediately the haw, or nictitating membrane, shoots over the eyeball. (See cut.) There is no other disease with which tetanus can be con- founded ; therefore, a minute description of the symptoms seems superfluous at this point of our argument. When the disease affects the muscles of the jaw only, it is called trismus; but it is only a variety of the same disease, and, therefore,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Dadd, George H. , b. 1813. [from old catalog]. Cincinnati, R. W. Carroll & co.
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