Heart Review
1. Review the structure of the heart wall; that is, which layer lies innermost, in the middle, and
outermost?
2. Between which ribs does the heart lie?
3. Another name for the visceral pericardium is
4. Which part of the heart rests on the diaphragm?
5. Which heart chamber pumps blood into the systemic circulation?
6. What is the 1st chamber to receive oxygenated blood?
7. What blood vessels bring blood to the chamber described in the previous question?
8. The SA node would be found in the wall of what chamber?
9. Which valve prevents regurgitation of blood into the right atrium?
10. Which valve prevents regurgitation of blood into the left atrium?
11. Which valve prevents regurgitation of blood into the right ventricle?
12. Which valve prevents regurgitation of blood into the left ventricle?
13. The fibrous strands attached to the cusps of certain valves that prevent the valve from acting like a
swinging door are known as
14. The structures described in the previous question are attached to the heart wall via muscles known as
15. What ventricle has the thickest myocardium? Why?
16. Between which two chambers would you find the foramen ovale?
17. In an adult, the foramen ovale would be known as the
18. What chamber pumps blood into the pulmonary circuit?
19. What chamber is the first to receive deoxygenated blood?
20. Name three major blood vessels that empty into the chamber described in the previous question.
21. In which part of the heart would you find the bundle of His?
22. What parts of the cardiac conduction system actually stimulate myocardial fibers?
23. How many capillary beds does a drop of blood pass through in making one complete circuit around
the body?
24. The very first branches of the ascending aorta are the
25. What organ do the branches just described serve?
26. Name two branches of the right coronary artery:
27. Name two branches of the left coronary artery:
28. Name the three branches of the arch of the aorta and the region of the body they bring blood to.
29. The two major regions of the descending aorta are
30. Through what muscular structure must the aorta pass in going from the thoracic to the abdominal
region?
31. What is the first branch of the abdominal aorta upon entering the abdominal cavity?
32. Describe what direction gas exchange occurs in pulmonary arteries?
33. Describe what direction gas exchange occurs in systemic arteries?
34. How does cardiac muscle compare with skeletal muscle in regards to the number of mitochondria?
35. What are the structural components of an intercalated disc?
36. What does the phrase functional syncytium mean relative to heart function?
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