Therapeutics of the circulation / by Sir Lauder Brunton.

  • Lauder Brunton
Date:
1914
Catalogue details

Licence: Public Domain Mark

Credit: Therapeutics of the circulation / by Sir Lauder Brunton. Source: Wellcome Collection.

    165/568 page 137
    coincides with the auricular systole, it allows the time of this to be exactly noted and compared with the carotid pulse, which nearly coincides with the ventricular systole. It is thus easy to ascertain whether the normal sequence between auricular and ventricular systoles exists, or whether any heart-block is present. Fig. 47.—Venous pulse in the jugular and its time-relations to the apex beat and carotid and radial pulses. The perpendicular lines show the time of (1) Beginning of auricular systole; (2) beginning of ven¬ tricular systole; (3) beginning of carotid pulse; (4) beginning of radial pulse ; (5) closure of semi-lunar valves ; (6) opening of tricuspid valves. (After Mackenzie.)—From Diseases of the Heart, by James Mackenzie, M.D., F.R.C.P., p. 107. London : Froude, and Hodder & Stoughton, 1903. For a method of showing diagrammatically the relative position of the curves and the delay in transmission, vide p. 418, Fig. 111. Propagation of the Pulse-wave. Delay.— The pulse-wave travels at a rate of about 30 feet per second.13 Counting from the commence- L
    digitised image 1
    digitised image 2
    digitised image 3