. Dadd's theory and practice of veterinary medicine and surgery. Veterinary medicine. DISEASES OF RESPIRATORY PASSAGES AND ORGANS. 89 twelve per minute, varying, however, according to the tempera- ment of the animal and the condition he may be in at the time of making the observation; while in horses the respirations are more frequent, varying in health, and when at rest, from fourteen to twenty-five; yet, under excitement and disease, they sometimes number over one THE CONTENTS OF THE THORAX. Explanation.—Fig. 1, Trachte ; 2, Bifurcation of the carotid artery; 3, Internal carotid ar
. Dadd's theory and practice of veterinary medicine and surgery. Veterinary medicine. DISEASES OF RESPIRATORY PASSAGES AND ORGANS. 89 twelve per minute, varying, however, according to the tempera- ment of the animal and the condition he may be in at the time of making the observation; while in horses the respirations are more frequent, varying in health, and when at rest, from fourteen to twenty-five; yet, under excitement and disease, they sometimes number over one THE CONTENTS OF THE THORAX. Explanation.—Fig. 1, Trachte ; 2, Bifurcation of the carotid artery; 3, Internal carotid artery; i i, Anterior lobes of the lungs; 5 5, Posterior lobes of the lungs; 6, The heart; 7, Coronary artery; 8, Cartilages of the false ribs; 9, The diaphragm. When an animal is located in a pure atmosphere, and the lungs are in good working condition, all the impurities contained in venous blood are brought into the presence of oxygen through the lining membrane of the air-cells, and thus a change in the color and character of the blood is immediately effected. In the first place, the venous blood, as it appeared before having been submitted to the action of the atmosphere, was of a dark purple. 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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