The signs of internal disease, with a brief consideration of the principal symptoms thereof . . lever begins to fall but is overtaken by the predicrotic wave onthe catacrotic side of the tracing and carried, to y—, the real summit?of the pulse wave. Hence omitting the false movement of the lever,axy, represents the real upward or anacrotic curve, ky, represents thepredicrotic notch, y, represents the point at which the ventricularstreanl ceases, when the positive pressure remits and the negative 66 PHYSICAL EXAMINATION wave, caused by the sudden cessation of inflowing blood, and the first
The signs of internal disease, with a brief consideration of the principal symptoms thereof . . lever begins to fall but is overtaken by the predicrotic wave onthe catacrotic side of the tracing and carried, to y—, the real summit?of the pulse wave. Hence omitting the false movement of the lever,axy, represents the real upward or anacrotic curve, ky, represents thepredicrotic notch, y, represents the point at which the ventricularstreanl ceases, when the positive pressure remits and the negative 66 PHYSICAL EXAMINATION wave, caused by the sudden cessation of inflowing blood, and the firstslight reflux begins. This cessation of pressure allows the lever to fallto w., W, is the point of closure of the aortic valves and is synchronouswith the second sound of the heart. Wz, is the positive wave or re-bound due to the closure of the aortic valves and corresponds to dicrotic wave, hence ywz, is the dicrotic notch, sometimes calledthe aortic notch, owing to the manner of its production. The slightcurve at m, is due to the resilient waves which succeed the aortic or. A Fig. 20—Pulse of constricted arterioles. High tension pulse. dicrotic wave. Since this curve m, is produced during diastole, it is;sometimes caled the diastolic notch. The Pulse of High Arterial Tension. The pulse of constrictedarterioles, the high tension arterial pulse, called by Sansom the pulseof prolonged arterial tension, differs from the normal pulse in that anotch is formed at the top of the curve and the maximum altitude ofthe lever may be reached after the notch. Yeo explains this phenom-enon on the ground that the first reflected wave is positive instead ofnegative, in the case of constricted arterioles, and is therefore added,to the percussion stroke, reaching it just as the lever begins to fall at klud carrying it to y, thus broadening the top of the primary•nirve, and this pulse is named the a,nacrotie pulse. The aortic ordicrotic notch, wz. is lessened as the dicrotic w^ave
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdiagnos, bookyear1906
