Anatomy and Physiology II D313 WGU
Study online at https://quizlet.com/_f67anr
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
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
, Anatomy and Physiology II D313 WGU
Study online at https://quizlet.com/_f67anr
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
23. atrioventricular (tricuspid) valve allows blood to flow from the right atrium to the
ventricle in a forward direction
Study online at https://quizlet.com/_f67anr
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
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
, Anatomy and Physiology II D313 WGU
Study online at https://quizlet.com/_f67anr
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
23. atrioventricular (tricuspid) valve allows blood to flow from the right atrium to the
ventricle in a forward direction
