Class II

You can keep your heart strong by:
  1. Eating heart-shaped candy
  2. Doing activities, like playing outside, riding your bike, and swimming
  3. Smoking
  4. Sleeping 18 hours a day
What parts act like doors that control blood flow in the heart?
  1. Valves
  2. Heart dams
  3. ) Kidneys
  4. Chambers
The beating sound your heart makes comes from:
  1. Blood going in the wrong direction
  2. Valves closing
  3. The heart skipping beats
  4. Your ears playing tricks on you
These are tubes that carry blood back to the heart:
  1. Arteries
  2. Veins
  3. Pipes
  4. Tubas
With circulation, the heart provides your body with:
  1. Oxygen
  2. Nutrients
  3. A way to get rid of waste
  4. All of the above
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