The Conduction System in the Heart


INTRODUCTION  
The conduction system in the heart is an intrinsic system whereby the cardiac muscle is automatically stimulated to contract, without the need for external stimulation (Waugh & Grant, 2007). It comprises specialised cardiac cells, which initiate and conduct impulses, providing a stimulus for myocardial contraction. It is controlled by the autonomic nervous system; the sympathetic nerves increase heart rate, contractility, automaticity and atrioventricular (AV) conduction, while the parasympathetic nerves have an opposite effect.

PULMONARY

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CARDIOLOGY

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FALL

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