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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