heart

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Across
  1. 3. The pulmonary vein is connected to the ________ atrium and brings oxygenated blood back from the lungs.
  2. 6. The upper chambers of the heart.
  3. 7. The lower chambers of the heart.
  4. 8. A thin muscular wall that separates the right side and left sides of the heart.
  5. 9. The ________ valve prevents backflow of blood from the left ventricle to the left atrium.
Down
  1. 1. The ________ artery is connected to the right ventricle and carries deoxygenated blood to the lungs.
  2. 2. Connected to the right atrium and brings deoxygenated blood back from tissues of the body.
  3. 4. The heart has ________ chambers.
  4. 5. The _________ prevents backflow of blood from the right ventricle to the right atrium.
  5. 10. Our main artery which carries oxygenated blood to all parts of the body.