Wiggers Diagram

Beschreibung

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Beschreibung

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A Wiggers diagram is a standard diagram used in cardiac physiology. The X axis is used to plot time, while the Y axis contains all of the following on a single grid:Blood pressure; Aortic pressure; Ventricular pressure; Atrial pressure; Ventricular volume; Electrocardiogram; Arterial flow (optional); Heart sounds (optional). By illustrating the coordinated variation of these values, it becomes easier to illustrate the relationship between these values in the cardiac cycle. It is named after Dr. Carl J. Wiggers, M.D.. The diagram is frequently called a "Wigger''s diagram", but this is incorrect. Note that during isovolumetric/isovolumic contraction and relaxation, all the heart valves are closed. At no time are all the heart valves open.