Introduction to Heart

Introduction to Heart

Copyright: © 2014 |Pages: 17
DOI: 10.4018/978-1-4666-6146-2.ch008


The heart is an important organ in the human body, for pumping the blood throughout the body. An electrocardiogram (ECG) is a diagnosis tool that reports the electrical operation of the heart, recorded by skin electrodes at specific locations on the body. The introduction of computer-based methods for the purpose of quantifying different ECG signal characteristics is the result of a desire to improve measurement accuracy as well as reproducibility. In this chapter, the author explains the basic definitions in heart studies and the electrocardiogram signals. In addition, the importance of interpretation and measuring the effective features in heart signals to detect the heart disorders is described. Finally, some of the common disorders of heart are briefly explained.
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2 Heart Function

The heart is an organ in the human body for providing blood and oxygen. It is divided into 2 halves containing four chambers, as shown in Figure 1. As seen, left and right atria are upper chambers, while the left and right ventricles are the lower chambers. There are fibrous, non-conductive tissues for joining the atria to the ventricles to isolate the ventricles from atria electrically. In order to pump the blood to the lung, the right atrium and the right ventricle cooperate together. The blood is forced into the right ventricle by the right atrium. In order to oxygenate the blood, the right ventricle then pumps it to the lungs. The oxygen-enriched blood received from the lung by the left atrium and the left ventricle circulates to the rest of the body (Adlam & Hampton, 1997).

Figure 1.

The heart conduction system

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