Heart Vocabulary

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Across
  1. 1. -large blood vessel that returns blood to the right atrium; there are two: superior and inferior
  2. 3. -conduction fibers that conduct impulses through the ventricles of the heart
  3. 4. arrest -Syndrome resulting from failure of the heart as a pump
  4. 6. -conducting fibers in the septum; also known as the bundle of His
  5. 10. -one of the lower chambers of the heart on the left
  6. 13. -one of the lower chambers of the heart on the right
  7. 14. -dense network of fibers of conduction at the junction of the superior vena cava and right atrium; it sends out an electrical impulse that begins and regulates the heart rate; also called pacemaker
  8. 15. -one of the four chambers of the heart, located in the upper left section
  9. 16. -dense network of fibers of conduction at the junction of the superior vena cava and right atrium; it sends out an electrical impulse that begins and regulates the heart rate; also called pacemaker, see artificial pacemaker
  10. 17. -the upper-right chamber of the heart that acts as a receiving room for deoxygenated blood returning from the body
  11. 19. -double layer of serous and fibrous tissue surrounding the heart
  12. 22. -structure that takes blood from the right ventricle to the lungs
Down
  1. 2. valve -made up of three half-moon-shaped cups, located between the junction of the aorta and the left ventricle of the heart
  2. 5. -small mass of interwoven conducting tissue located between the atria and ventricles
  3. 7. -conducting fibers in the septum; also known as the bundle of His
  4. 8. -partition; dividing wall between two spaces or cavities, such as the septum between the left and right sides of the heart or nose
  5. 9. -atrioventricular valve between the left atrium and left ventricle; allows blood to flow from left atrium to left ventricle
  6. 11. -pocket in posterior of right atrium into which the coronary vein empties
  7. 12. -membrane lining the interior of the heart
  8. 18. -muscle of the heart
  9. 20. valve -heart valve at the opening of the pulmonary artery that allows blood to flow from the right ventricle into the pulmonary artery
  10. 21. -largest artery in body, rising from the left ventricle of the heart; takes blood from the heart to the rest of the body