Unit 3

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What does the circulatory system transport?
Molecules around the body.
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What is the circulatory system made up of?
The heart and blood vessels.
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Why is oxygen transported to cells?
For respiration
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Where is carbon dioxide transported after respiration?
Transported to cells.
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What does the digestive system produce?
Nutrients that then go to cells.
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How many chambers does the heart have?
Four chambers.
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What are the chambers at the top of the heart called?
The atria.
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What are the chambers at the bottom of the heart called?
The ventricles.
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What is the job of the atria?
To receive blood.
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What is the job of the ventricles?
To pump blood.
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Where is deoxygenated blood found?
In the right side of the heart.
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Where is oxygenated blood found?
In the left side of the heart.
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Why does the heart have valves?
To prevent blood backflow.
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Where are the valves found in the heart?
In the large arteries.
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Which side of the heart in diagrams is bigger?
The left side.
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Which side of the heart does the blood leave from?
The left side via the aorta.
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Where does blood go after leaving the aorta?
It gets transported around the body.
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Which side of the heart does the blood return to?
The right side via the vena cava.
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In which artery does blood travel to the lungs?
Via the pulmonary artery.
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In which artery does blood leave the lungs?
Via the pulmonary vein.
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Which is the only artery that can carry deoxygenated blood?
Pulmonary.
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The pulmonary vein is the only vein that can carry what?
Oxygenated blood.
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Other cards in this set

Card 2

Front

What is the circulatory system made up of?

Back

The heart and blood vessels.

Card 3

Front

Why is oxygen transported to cells?

Back

Preview of the front of card 3

Card 4

Front

Where is carbon dioxide transported after respiration?

Back

Preview of the front of card 4

Card 5

Front

What does the digestive system produce?

Back

Preview of the front of card 5
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