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B7.2 Transport in Humans - The Heart
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The diagram shows the structure of the heart. Which labelled part has the correct function stated?
D, the pulmonary artery carries deoxygenated blood from the heart to the lung.
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Name the structure of the heart that separates the oxygenated and deoxygenated blood.
Septum of the heart!
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The left ventricle contracts to send blood to the body. What happens to the valves A & B when the ventricle contracts?
A closes and B opens! A closes to prevent the blood from flowing back to atrium and B opens to allow blood to go out.
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What are X and Y?
X is the right atrium and Y is the left ventricle!
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Which blood vessel is the pulmonary artery?
A is pulmonary artery. Do you what B, C and D represent?
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What is the function of valves in the heart?
To prevent backflow of the blood
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Using the letters provided, in which order does blood pass through the chambers as it returns from the lungs during a complete circuit?
Q > R > P > S! The oxygenated blood will pass through left side first before become deoxygenated and return to right side.
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How many chambers are there in the heart? Can you name them
4 - right atrium, right ventricle, left atrium and left ventricle!
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