The Heart and Circulation
The Heart and Circulation
The Heart and Circulation
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1. What is another name for an artery?<strong>The</strong> <strong>Heart</strong> <strong>and</strong> <strong>Circulation</strong>2. What do arteries do?3. What is the largest artery in the human body?4. What kind of muscle is found in the walls of blood vessels <strong>and</strong> what does it do?5. What is another name for a vein?6. What do veins do?7. Where are valves often located <strong>and</strong> what is their purpose?8. What is the function of capillaries <strong>and</strong> where can they be found?9. What substances diffuse out of capillaries? Into them?10. Name <strong>and</strong> discuss the structure of the four chambers of the heart.11. What is the functional significance of the structural differences of the fourchambers of the heart?
12. Which chamber of the heart is the largest? Why?13. What is a septum?14. Name the two septa of the heart.15. Name the two atrioventricular valves of the heart.16. What is the function of the chordae tendinae?17. Discuss the functional significance of the heart valves.18. What is the coronary sulcus <strong>and</strong> what can usually be found in it?19. What is the base of the heart? <strong>The</strong> apex?20. Discuss the four borders of the heart.
21. Identify the two semilunar valves of the heart <strong>and</strong> their locations.22. Distinguish between the pulmonary <strong>and</strong> the systemic circuit.23. Using your diagram of blood flow through the heart, write out in words the paththat blood takes as it leaves <strong>and</strong> them returns to the heart.
24. Label the external <strong>and</strong> internal anatomy of the heart.External AnatomyInternal Anatomy
27. Label the diagram of cardiac muscle contraction.28. What is another name for a single heart beat?29. What is systole <strong>and</strong> diastole?30. What are the heart sound <strong>and</strong> what causes them?31. Name the two numbers that make up blood pressure <strong>and</strong> discuss the actions of theheart that cause each number.32. <strong>The</strong> fact that the nervous system does not control the heartbeat, but that the heartbeats all on its own is called what?33. What part of the conducting system of the heart is called the natural cardiacpacemaker? Why is it called this?
34. What is the role of the atrioventricular node (AV node)?35. What parts of the nervous system do have an effect upon the action of the heart?36. Discuss the actions of the heart that cause each part of an EKG wave.37. Label the following EKG wave.
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