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Questions and Answers
What happens when the left atrium contracts in the heart?
What happens when the left atrium contracts in the heart?
- Blood is pumped out to the body
- Blood is transferred to the left ventricle (correct)
- De-oxygenated blood is collected
- Valves ensure blood flow backwards
Why does the heart have different chambers?
Why does the heart have different chambers?
- To regulate the heartbeat rhythm
- To ensure that blood only flows to the lungs
- To prevent oxygenated blood from mixing with de-oxygenated blood (correct)
- To maintain the body temperature
Which chamber of the heart receives oxygen-rich blood from the lungs?
Which chamber of the heart receives oxygen-rich blood from the lungs?
- Left ventricle
- Left atrium (correct)
- Right ventricle
- Right atrium
Why do ventricles have thicker muscular walls compared to atria?
Why do ventricles have thicker muscular walls compared to atria?
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What is the function of valves in the heart?
What is the function of valves in the heart?
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Which chamber of the heart dilates as the right atrium contracts?
Which chamber of the heart dilates as the right atrium contracts?
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