Which statement accounts for the ventricles contracting after the atria?
- AThe band of fibres between the atria and the ventricles conducts the excitation wave slowly.
- BThe excitation wave has to pass through a small area of conducting fibres in the septum.
- CThe excitation wave has to travel further to reach the base of the ventricles than to spread across the atria.
- DThe excitation wave travels slowly through the Purkyne tissue to reach the base of the septum.