Cardiac system excitoconducción. Definition

Medical Definition: cardiac system excitoconducción

Heart pacemaker, which consists of the sinoatrial and atrioventricular. In this part of the bundle of His, which divides into two branches right and left, which is resolved into a fine arborization (Purkinje) by the respective ventricles. This system consists of very poorly differentiated muscle tissue, which has the ability to become aroused and discharged rhythmically. The SA node is the one that is driven frequently (60 to 80 per minute) and, therefore, is one that imposes its rhythm, so it is considered the true heart pacemaker. Only when this node fails, the atrioventricular node that causes the heart's contraction, but at a slower rate, between 25 and 35 per minute.

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