Biomedical Engineering Reference
In-Depth Information
Isovolumic
contraction
Isovolumic
relaxation
140
Aortic
valve
closes
Aortic
valve
opens
120
100
Aortic pressure wave
80
60
40
AV valve
closes
AV valve
opens
20
a wave
c wave
Left atrial pressure wave
Left ventricular pressure wave
0
140
v wave
120
Ventricular volume
100
80
60
40
Electrocardiogram
Systole
Diastole
FIGURE 4.7 Pressure and volume waves associated with the left side of the heart. This figure depicts the rela-
tionship between the electrocardiogram and the contraction and filling of the cardiac tissue. Various important
points are noted, such as valve opening and systole versus diastole.
 
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