Chapter 8 - Diseases of the Heart
Introduction to Heart Diseases
Impulse of the Heart
Sounds of the Heart
Percussion Sounds
Altered Sounds of the Heart
Enlargement of the Ventricles
Dilatation of the Ventricles
Interior of Lungs, Liver, Heart, and Stomach - Diagram
Hypertrophy with Slight Dilatation
Dilatation with Slight Hypertrophy
Tumors of the Heart
Softening of the Heart
Induration of the Heart
Fatty Degeneration of the Heart
Shrinking of the Heart
Acute Inflammation of the Heart Case
Chronic Inflammation of the Heart Case
Carditis
Inflammation of the Lining of the Heart
Chronic Inflammation of the Lining of the Heart
Disease of the Semi Lunar Valves
Disease of the Mitral Valves
Water in the Heart Case
Palpitation of the Heart
Neuralgia of the Heart
Polypus of the Heart
Displacement of the Heart

8.5 Altered Sounds of the Heart

Altered Sounds of the Heart.'

THESE sounds are changed by disease in a variety of ways, both as to their character and duration. One or both sounds may be turned into a noise like the blowing of a pair of bellows. This is called the bellows sound. When this sound is very harsh, it may become like the noise of a rasp, or file, or saw. These altered sounds are au precluded by an altered condition of the valvular passages through which the blood passes. If you build an aqueduct of equal dimensions throughout, and smooth on the inside, you may send a certain volume of water through, at a given speed, without noise. But if you make sudden contractions in the aqueduct, or allow large stones to project into it, and then attempt to send through the same body of water, at the same rate of speed, you will hear all sorts of noises.

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