Normal heart rhythm (sinus rhythm) depends on regular activity of the sinoatrial node (SAN),
a heterogeneous collection of specialized myocytes in the right atrium. SAN cells, in general …

The sinoatrial node (SAN) is the normal pacemaker of the heart. During a human lifetime it
must initiate approximately 2 billion heartbeats and coordinate the cardiovascular response …

Background: The components of the cardiac conduction system (CCS) were discovered
almost two centuries and presented in the diagrammatic forms. This should be due to the …

The cardiac conduction system is composed of the sinoatrial node (SAN), the atrioventricular
node (AVN), the His bundle, the right and left bundle branches, the fascicles, and the …

The cardiac conduction system is responsible for the initiation and coordination of the
heartbeat. It consists of three central components: the sinus node, the atrioventricular node …

Defects of cardiac impulse generation and conduction can occur at various levels in the
cardiac conduction system. Conduction disorders that lead to important bradycardia or …

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Background. The cardiac conduction system is responsible for the initiation and propagation
of action potentials in the heart. The sinus node is the primary pacemaker in the heart. Action …

Per le civiltà antiche, il cuore era considerato molto più di una semplice pompa: era la sede
dell'anima. Quando gli antichi Egizi mummificavano i loro morti, rimuovevano la maggior …

Mutations in the SCN5A gene, which encodes the α-subunit of the cardiac sodium channel
Nav1. 5, are implicated in different inherited cardiac arrhythmias. The incomplete …