Chapter 26 Crossword Puzzle

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Across
  1. 1. A cord-like band connecting the pulmonary trunk and the aortic arch.
  2. 3. A mechanical device that allows the flow of blood in one direction only?
  3. 7. The bicuspid valve is also known as this valve?
  4. 8. A remnant of a foramen that in the fetal stage of development existed between the right atrium and the left atrium.
  5. 9. What structure protects the heart posteriorly?
  6. 11. A short, wide, vessel that receives all three cardiac veins?
  7. 13. What structure acts as anterior protection for the heart?
  8. 14. The area where the great vessels attach to the heart.
  9. 15. What are the ear like appendages attached to the lateral surface of the atria?
  10. 16. The partition between the right atrium and the left atrium.
  11. 17. the veins draining the heart are all called?
  12. 18. What node is known as the pacemaker?
Down
  1. 2. The right atrium opens to the right ventricle (anteriorly) via the?
  2. 4. The spaces between the cusps and the wall of the aorta are termed?
  3. 5. Inner epithelial lining of the chambers of the heart is referred to as?
  4. 6. This type of muscle consists of internal folds of the ventricular muscle and provides attachment for the chordae tendineae
  5. 10. Connective tissue cords that attach to the lower surface of the cusps?
  6. 12. The rounded projection of the heart that points inferiorly and to the left is known as?