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What is the function of valves in the heart?

Practice Questions

Q1
What is the function of valves in the heart?
  1. To increase blood pressure
  2. To prevent backflow of blood
  3. To regulate heart rate
  4. To oxygenate blood

Questions & Step-by-Step Solutions

What is the function of valves in the heart?
  • Step 1: Understand that the heart is a pump that moves blood throughout the body.
  • Step 2: Learn that blood needs to flow in one direction to be effective.
  • Step 3: Know that valves are like doors in the heart that open and close.
  • Step 4: Realize that when the heart pumps, the valves open to let blood through.
  • Step 5: Understand that when the heart relaxes, the valves close to prevent blood from flowing backward.
  • Step 6: Conclude that the main function of the valves is to keep blood moving forward and prevent backflow.
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