ANATOMY AND PHYSIOLOGY II D313 WGU
EXAM QUESTIONS & ELABORATED CORRECT
ANSWERS
1. dextrocardia; situs inversus. The heart is on the right side of the thorax in
a very
small percentage of people. These people
have a condition called , which is a
developmental anomaly.
When the position of the organs of the ab-
domen is also affected, the condition is
known as
.
2. Where is the heart positioned? It is superior to the diaphragm.
It is medial to the lungs.
3. deoxygenated blood refers to the blood that has low oxygen
saturation relative to blood leaving the
lungs
4. oxygenated blood refers to the blood that has been exposed to
oxygen in the lungs
5. cardiac muscle an involuntary, striated muscle that makes up
the walls of the heart
6. myocardium one of the layers of the heart wall, it includes
cardiac muscle fibers
7. diaphragm a large dome-shaped muscle located
within the chest cavity, just below the
lungs
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24
,ANATOMY AND PHYSIOLOGY II D313 WGU
EXAM QUESTIONS & ELABORATED CORRECT
ANSWERS
8. sternum a long flat bone located in the central part of
the chest
9. base located at the level of the third costal cartilage
or the third bone of the rib cage
10. apex
2/
24
, ANATOMY AND PHYSIOLOGY II D313 WGU
EXAM QUESTIONS & ELABORATED CORRECT
ANSWERS
located at the sternum between the fourth and fifth ribs
11. pericardium a thin, fluid-filled sac that covers the outer
surface of the heart
12. pericardial cavity a narrow cavity filled with a thin serous fluid,
called pericardial fluid
13. pericardial fluid a thin serous fluid
14. endocardium a smooth, thin membrane lining the inner
surface of the heart chambers
15. myocardium the heart muscle composed of cardiac muscle
fibers
16. epicardium the thin, outer membrane of the heart wall
17. endo means inner
18. myo means muscle
19. epi means above
20. atria two upper chambers of the heart that are
positioned near its base
21. auricles small semi-elastic pouches within the atria that
ex- pand when filled with blood
22. atrioventricular valves these valves close to prevent blood from
flowing back into the atria
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24
EXAM QUESTIONS & ELABORATED CORRECT
ANSWERS
1. dextrocardia; situs inversus. The heart is on the right side of the thorax in
a very
small percentage of people. These people
have a condition called , which is a
developmental anomaly.
When the position of the organs of the ab-
domen is also affected, the condition is
known as
.
2. Where is the heart positioned? It is superior to the diaphragm.
It is medial to the lungs.
3. deoxygenated blood refers to the blood that has low oxygen
saturation relative to blood leaving the
lungs
4. oxygenated blood refers to the blood that has been exposed to
oxygen in the lungs
5. cardiac muscle an involuntary, striated muscle that makes up
the walls of the heart
6. myocardium one of the layers of the heart wall, it includes
cardiac muscle fibers
7. diaphragm a large dome-shaped muscle located
within the chest cavity, just below the
lungs
1/
24
,ANATOMY AND PHYSIOLOGY II D313 WGU
EXAM QUESTIONS & ELABORATED CORRECT
ANSWERS
8. sternum a long flat bone located in the central part of
the chest
9. base located at the level of the third costal cartilage
or the third bone of the rib cage
10. apex
2/
24
, ANATOMY AND PHYSIOLOGY II D313 WGU
EXAM QUESTIONS & ELABORATED CORRECT
ANSWERS
located at the sternum between the fourth and fifth ribs
11. pericardium a thin, fluid-filled sac that covers the outer
surface of the heart
12. pericardial cavity a narrow cavity filled with a thin serous fluid,
called pericardial fluid
13. pericardial fluid a thin serous fluid
14. endocardium a smooth, thin membrane lining the inner
surface of the heart chambers
15. myocardium the heart muscle composed of cardiac muscle
fibers
16. epicardium the thin, outer membrane of the heart wall
17. endo means inner
18. myo means muscle
19. epi means above
20. atria two upper chambers of the heart that are
positioned near its base
21. auricles small semi-elastic pouches within the atria that
ex- pand when filled with blood
22. atrioventricular valves these valves close to prevent blood from
flowing back into the atria
3/
24
