File:Diseases of the dog and their treatment (1911) (14761940836).jpg

Identifier: diseasesofdogthe00ml (find matches)
Title: Diseases of the dog and their treatment
Year: 1911 (1910s)
Authors: Müller, Georg Alfred, 1851-1923 Glass, Alexander
Subjects: Horses Dogs -- Diseases
Publisher: Chicago, Ill. : Alexander Eger
Contributing Library: Webster Family Library of Veterinary Medicine
Digitizing Sponsor: Tufts University

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.2 >> a ^5 a ■- y. a >- rtc u *- a •I ^ tion in inspiring, and the elasticity of the tissue of the lungs and the walls ofthe chest in expiration; this is also aided by the pressure of the intestines PHYSICAL DIAGNOSIS OF THE LUNGS 121 on the diaphragm. It is only when the respiration is obstructed that theassistance of the muscles of respiration is required in expiration. Theworks on physiology give more minute details on this subject. The nor-mal respirations are from twelve to twenty-eight per minute, the size and
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0) bO -e.g « a o «> ^ a S 2 hi M U5 53 age of the animal making a slight difference, in the smaller dog, of course,being more f rec(uent. Various conditions tend to alter the above number,such as running, physical excitement, atmospheric temperature, the pres-ence of a stranger, particularly if they handle the animal, overloading of 122 DISEASES OF THE RESPIRATORY ORGANS the stomach, and advanced pregnancy. While the respirations in the dogare regular, yet they are disturbed more quickly by physical excitementthan in any other animal, and after any unusual exercise, the dog will openthe mouth. A pathological lessening of the number of the respirations, may beseen in all serious affections of the brain and its membranes, in acute infec-tious diseases, such as septicaemia and distemper and in cases of contrac-tion of the air-passages. A slight increase in the Iespirations may follow any increase of tempera-ture; they are also increased, when any pain is present, in circumscribedple

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