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3.1.1.2 Cardiovascular system Reorder

Target Level
C
Running Total
0
0%
Attempt
1 of 3

Drag and drop the boxes into the correct order.



  • The electrical impulse travels to the atrioventricular (AV) node, which delays ventricular contraction.
  • The ventricles contract.
  • The electrical impulse continues its path to the bundle of His, to conduct the impulse to the Purkinje fibres.
  • The sino-atrial (SA) node acts as a pacemaker which generates an electrical impulse.
  • The purpose of this is to allow the ventricles to fill with blood.
  • This electrical impulse causes the atria to contract.

This is your 1st attempt! The marking algorithm gives more marks for getting the right order first time.

Pass Mark
70%