Organ Systems Physiological Changes: Cardiovascular
Figure 2: Figure Legend
Figure 2 shows the basic anatomy of the human heart and its conduction system. Here is a more detailed version of the caption that accompanies that image: Panel A shows the front view of the heart cut vertically. Panel B shows a front view of the heart cut horizontally. Panel C is a front view of the heart cut vertically to show how the signal to begin a heart beat is initiated in the sinoatrial node and conducted to the rest of the heart by the atrioventricular node and bundle, the bundle branches, and the purkinje fibers. Panel D is an electrocardiogram showing how electrical events in the cardiac conduction system relate to P, QRS, and T waves.
MARVIN O. BOLUYT EDWARD G. LAKATTA
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Medicine EncyclopediaAging Healthy - Part 3Organ Systems Physiological Changes: Cardiovascular - Heart Structure And Function At Rest, Reserve Capacity Of The Heart, Vascular Structure And Function At Rest