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28 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the chambers in the heart? |
2 atria and 2 ventricles |
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Which is thicker ventricles or atria? Explain why? |
The ventricle is thicker because it has to pump blood further |
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What are the roles of atria and ventricles? |
Atria - pumps blood to ventricles
Ventricles - pumps blood out of the heart ( The right to the lungs while the left is to the body |
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The left ventricle has a thicker muscular wall to the right, explain why? |
Because the left has stronger contractions, so can generate a higher pressure and pump blood further around the body |
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What is the function of the artery? |
Takes blood away from the heart |
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What is the function of the artery? |
Takes blood away from the heart |
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What does the vein do? |
Returns blood to the heart |
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What is the function of the artery? |
Takes blood away from the heart |
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What does the vein do? |
Returns blood to the heart |
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What does the vena cava do? |
It supplies the right atrium with deoxygenated blood from the body |
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What is the function of the artery? |
Takes blood away from the heart |
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What does the vein do? |
Returns blood to the heart |
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What does the vena cava do? |
It supplies the right atrium with deoxygenated blood from the body |
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What does the pulmonary vein do? |
Supplies the left atrium with oxygenated blood from the lungs |
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What is the function of the artery? |
Takes blood away from the heart |
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What does the vein do? |
Returns blood to the heart |
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What does the vena cava do? |
It supplies the right atrium with deoxygenated blood from the body |
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What does the pulmonary vein do? |
Supplies the left atrium with oxygenated blood from the lungs |
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What does the right ventricle do? |
It supplies the pulmonary artery with deoxygenated blood from the lungs |
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What is the function of the artery? |
Takes blood away from the heart |
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What does the vein do? |
Returns blood to the heart |
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What does the vena cava do? |
It supplies the right atrium with deoxygenated blood from the body |
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What does the pulmonary vein do? |
Supplies the left atrium with oxygenated blood from the lungs |
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What does the right ventricle do? |
It supplies the pulmonary artery with deoxygenated blood from the lungs |
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What does the left ventricle do? |
It supplies the aorta with oxygenated blood to the body |
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What does the cardiac cycle involve? |
SAN - AVN - Bundle of His Apex - Purkine Fibres |
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What is the first stage of the cardiac cycle? |
The first step is that the heart fills up with blood, both atria and ventricles are relaxed. The AV valve is opened while the SL is closed |
The filling stage |
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What is the second stage of the cardiac cycle? |
The second stage is that the atria contracts, this is due to the SAN (found in the right atrium |
The atria contracts |
