Cardiac Cycle

  • Created by: Cammie
  • Created on: 20-05-13 10:36
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  • Cardiac Cycle
  • Controlled by the sinoatrial node
  • Controlled by the atrioventicular node
  • SAN initiates the heart beat
  • Sends a wave of electrical activity
  • Across the atria
  • The atria contracts
  • AVN delays electrical activity
  • Allows the atria to empty
  • Allows the ventricles to fill
  • Before they contract
  • AVN sends a wave of electrical activity
  • Down the Purkyne Fibres
  • Ventricles contract from the base up


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