How is the cardiac cycle controlled?

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  • Created by: Alice
  • Created on: 08-01-14 19:10
What does the SAN generate?
Impulses for the myogenic cardiac muscle.
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What is the nickname for the SAN?
The pacemaker.
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What does the SAN cause?
The atria to contract.
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What is atrial contraction?
Atrial systole.
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Through the AVN, where is the blood then forced?
To the ventricle
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What allows this to happen?
The opening of the atrioventricular valves.
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Impulses then reach the AV node and then...
The AVN delays sending impulses up so blood can fill ventricles.
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What happens when the impulses reach the apex of the heart through the Bundle of His?
A contraction from the impulses over the ventricles.
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Ventricular contraction is called...
Ventricular Systole.
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How is blood forced out of the heart?
The semi-lunar valves open and allow the blood to travel through arteries.
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Other cards in this set

Card 2

Front

What is the nickname for the SAN?

Back

The pacemaker.

Card 3

Front

What does the SAN cause?

Back

Preview of the front of card 3

Card 4

Front

What is atrial contraction?

Back

Preview of the front of card 4

Card 5

Front

Through the AVN, where is the blood then forced?

Back

Preview of the front of card 5
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