1.2.2 inititiation of cardiac cycle .. 1.0 / 5 based on 1 rating ? BiologyHuman, animal and plant physiologyASAll boards Created by: MaryanCreated on: 01-01-12 20:22 The SAN located in the right atria sends a wave of depolarisation to the AVN. The wave of depolarisation is delayed to allow the atria to contract. The wave of depolarisation goes down the bundle of his. the bundle of his seperates in to the right and left ventricular walls. The wave of depolarisation is carried by the purkinye fibers. Contraction starts at the bottom and up - away from the apex This results in a strong unison contraction 1 of 1
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