Heart structure

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Across
  1. 4. carries deoxygenated blood from the right ventricle to the lungs.
  2. 5. carries oxygenated blood from the lungs to the left atrium
  3. 7. is the upper chamber where blood enters the ventricles.
  4. 8. it makes sure the heart is pumping and that it is circulating blood.
  5. 9. it carries deoxygenated blood from the body to the right atrium.
Down
  1. 1. valves controls the heart rate.
  2. 2. carries the blood from the heart to the whole body and it is the most important artery
  3. 3. Acts as a holding chamber for blood that is retuning from the lungs.
  4. 6. they are receiving chambers for blood to flow though the heart.
  5. 9. prevents the blood from going back wards.