Buying books and searching here help support our site . Please let us know how you like these services. In the normal heart, there is electrical insulation between the atria and the ventricles . Each time electricity travels such a circle, it generates a heart beat. Because it can travel rapidly, the heart can go quite fast.
Accessory pathways can conduct in both directions or only in one direction.
Used in contrast to subacute , which implies longer duration or less rapid change, and to chronic , which implies indefinite duration or virtually no change. The time scale depends on the subject under discussion. Afterload Reducing Agents Medications that relax the arteries, into which the heart pumps, and thereby make it easier for the heart to pump. They are useful for treatment of hypertension, congestive heart failure, and regurgitation of the mitral and aortic valves. The upper chambers of the heart.