A text-book of physiology, for medical students and physicians . Fig. 213.—SphyKmoRrama illustrating the <fT«-<t of variations m blood-pressure, partic-ularly upon the position of the dicrotic wave and notch: n. The dicrotic notch; d, the dicrotic wave. A. Sphygmogram while blood-pressure was relatively low. li, Sphygmo-Lram with higher blood-pn tire I Mackenzie.) whether the pulse is large (pulsus magnus) or small (pulsus parvus),whet her the wave rises and falls rapidly (pulsus celer) as happensin the fuse of insufficiency of the aortic valves, or whether in onephase or the other it is
A text-book of physiology, for medical students and physicians . Fig. 213.—SphyKmoRrama illustrating the <fT«-<t of variations m blood-pressure, partic-ularly upon the position of the dicrotic wave and notch: n. The dicrotic notch; d, the dicrotic wave. A. Sphygmogram while blood-pressure was relatively low. li, Sphygmo-Lram with higher blood-pn tire I Mackenzie.) whether the pulse is large (pulsus magnus) or small (pulsus parvus),whet her the wave rises and falls rapidly (pulsus celer) as happensin the fuse of insufficiency of the aortic valves, or whether in onephase or the other it is more prolonged than normal (pulsus tardus).It seems obvious, however, that a more satisfactory conclusion maybe reached in all such cases by obtaining a sphygmographic record. In the works devoted to clinical methods numerous such sphygmo- grams are described. By mere pressure upon the artery one can determine also approximately whether the Mood-pressure is high THE PULSE. 513- or low by estimating the force with which the wave presses uponthe fingers, or
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