chapter 9

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Across
  1. 6. heart valve between the left ventricle and the aorta
  2. 7. large artery that is the main trunk of the arterial system branching from the left ventricle
  3. 8. lower right or left chamber of the heart
  4. 11. circulation of blood from the pulmonary artery through the vessels in the lungs and back to the heart via the pulmonary vein, providing for the exchange of gases
  5. 13. protective sac enclosing the heart composed of two layers with fluid between
  6. 15. circulation of blood through the coronary blood vessels to deliver oxygen and nutrients to the heart muscle tissue
  7. 19. heart valve between the left atrium and the left ventricle (cuspis = point); also called the bicuspid valve
  8. 21. vein
  9. 24. neurological tissue in the center of the heart that receives and amplifies the conduction of impulses from the SA node to the atrioventricular bundle (bundle of His)
  10. 26. outer layer (parietal=pertaining to wall)
  11. 27. swollen, twisted vein
  12. 28. layer of the pericardium closest to the heart (visceral = pertaining to organ)
Down
  1. 1. valves located at intervals within the lining of veins, especially in the legs, which constrict with muscle action to move the blood returning to the heart
  2. 2. partition between the right and left atria
  3. 3. resting; resting state of a myocardial cell
  4. 4. neurologic fibers extending from the AV node to the right and left bundle branches that fire the impulse from the AV node to the Purkinje fibers; also called bundle of His
  5. 5. fibers in the ventricles that transmit impulses to the right and left ventricles, causing them to contract
  6. 9. the pacemaker; highly specialized, neurological tissue embedded in the wall of the right atrium; responsible for initiating electrical conduction of the heartbeat, causing the atria to contract and firing conduction of impulses to the atrioventricular (AV) node
  7. 10. partition between the right and left ventricles
  8. 12. fatty (lipid) paste
  9. 14. circulation of blood throughout the body via arteries, arterioles, capillaries, venules, and veins to deliver oxygen and nutrients to body tissues
  10. 16. heart valve opening from the right ventricle to the pulmonary artery (luna = moon); also called the pulmonary semilunar valve
  11. 17. fluid-filled cavity between the pericardial layers
  12. 18. pulse
  13. 20. vessel
  14. 21. chest
  15. 22. ventricle (belly or pouch)
  16. 23. structures within the heart that open and close with the heartbeat to regulate the one-way flow of blood
  17. 24. upper right or left chamber of the heart
  18. 25. valve between the right atrium and the right ventricle