| Front | How does ventricular systole occur? |
|---|---|
| Back | - wave of depolarisation arrives at AVN in floor of RA - AVN generates action potential - wave of depolarisation travels down Bundle of His in septum to apex of heart - passes up Purkyne tissue in ventricle walls - ensures bottom upwards contraction of cardiac muscle in ventricle walls - ensures blood is forced into pulmonary artery and aorta |
Tags: heart_rate
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