Cardiac cycle (role of atrioventricular node (AVN). Purkyne Fibres and Sinoatrial node (SAN) Flashcards by Jana Awoonor-Gordon | Brainscape

Q

Role of Atrioventricular (AV) node

A

On receipt of impulse from atria, send signal to ventricles after a short delay

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Q

Role of Purkinje fibres

A

Conduct impulse up the ventricle walls, causing contraction

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Q

Role of Sinoartrial (SA) node

A

Initiates heartbeat

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