. Clinical disorders of the heart beat : a handbook for practitioners and students . Fig. 3. A sphygmographic curve from a normal subject, breathing is an increase of pulse rate during inspiration and a decrease duringexpiration. II IMH. I I I I I I II Fig. 6. A gross sinus arrhythmia : a long pulse pause accompanies eachexpiration. In this, as in all similar figures, the top line represents timein fifths of seconds. attract immediate attention. Irregularity of a very similarkind is found frequently at the age of puberty, and it is alsoseen on rare occasions in the adult (a striki
. Clinical disorders of the heart beat : a handbook for practitioners and students . Fig. 3. A sphygmographic curve from a normal subject, breathing is an increase of pulse rate during inspiration and a decrease duringexpiration. II IMH. I I I I I I II Fig. 6. A gross sinus arrhythmia : a long pulse pause accompanies eachexpiration. In this, as in all similar figures, the top line represents timein fifths of seconds. attract immediate attention. Irregularity of a very similarkind is found frequently at the age of puberty, and it is alsoseen on rare occasions in the adult (a striking example ofthe last is shown in Fig. 6). All these irregularities are of vagal origin. Sinus arrhythmia. 13
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