Chapter

The Heart

Jaakko Malmivuo

in Bioelectromagnetism

Published in print October 1995 | ISBN: 9780195058239
Published online March 2012 | e-ISBN: 9780199847839 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195058239.003.0006
The Heart

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This chapter describes the anatomy and physiology of the heart. It also discusses cardiac electric events on an intracellular level. Such electric signals may be recorded with a microelectrode, which is inserted inside a cardiac muscle cell. However, the electrocardiogram (ECG) is a recording of the electric potential, generated by the electric activity of the heart, on the surface of the thorax. The ECG thus represents the extracellular electric behavior of the cardiac muscle tissue. This chapter explains the genesis of the ECG signal via a highly idealized model.

Keywords: heart; electric signals; microelectrode; ECG; electrocardiogram; cardiac muscle tissue

Chapter.  3396 words.  Illustrated.

Subjects: Neuroscience

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