Anatomy of the Heart (and more)

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Across
  1. 4. The right atrium is connected to the right ventricle and the blood flow is regulated by the ______.
  2. 5. Heart chamber that receives blood into the heart.
  3. 10. Artery that carries deoxygenated blood from the right side of the heart to the lungs.
  4. 12. Cardiac electrical impulses can be recorded on graphs called ______.
  5. 13. The left atrium is connected to the left ventricle and the blood flow is regulated by the ______.
Down
  1. 1. The muscular layer of the heart.
  2. 2. Muscular chamber that pumps blood out of the heart and into the circulatory system.
  3. 3. These veins carry oxygenated blood from the lungs to the left atrium of the heart.
  4. 6. The rhythmic contraction and expansion of the heart is called a ______.
  5. 7. Large veins that bring deoxygenated blood to the heart to get oxygen.
  6. 8. The main vessel that takes oxygen-rich blood from the heart to the rest of the body.
  7. 9. The contraction phase of a cardiac cycle.
  8. 11. The expansion phase of a cardiac cycle.