Answers.
1. 1. The P wave of an electrocardiogram corresponds to the electrical activity
produced by the -Answer- depolarization of atria
2. 2. Normal insertion sites of cardiac catheterization include the -Answer-
femoral and brachial veins and arteries
3. 3. Branches of the vagus nerve conduct parasympathetic impulses to the -
Answer- -
pancreas and stomach
4. 4. The equation describing the electrical measurement of ECG is -
Answer- Lead I + Lead III = Lead II and aVL + aVF + aVR = 0
5. 5. An ECG lead configuration which measures the voltage between one
electrode and the average of two other limb leads is a(n) -Answer-
augmented lead configuration
6. 6. The following gas laws are essential to understanding respiratory func-
tion -Answer- Boyle's law, Charles's law, Dalton's law, Henry's law
7. 7. The tidal volume for an adult male at rest is approximately -Answer- 500
mililiters
8. 8. The percentage of exhaled air that is carbon dioxide is approximately -
Answer- 4%
9. 9. The interval during which an electrical shock is most likely to cause the
heart to go into fibrillation is between -Answer- 150 and 200 milliseconds
following the R-wave peak
10. 10. The P wave of an electrocardiogram corresponds to the electrical
activity produced by -Answer- the depolarization of atria
11. 11. Whole blood minus the cells is -Answer- plasma (Serum consists of
plasma plus platelets.)
12. 12. The volume of packed red blood cells, expressed as a percentage of
total blood volume, is called the -Answer- hematocrit
13. 13. The dicrotic notch in the arterial pressure waveform is associated
with -Answer- aortic valve closing
14. 14. The normal range of pH for arterial human blood is approximately -
Answer- -
7.36-7.44
15. 15. Hemolysis is -Answer- the destruction of red blood cells
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, 16. 16. The bioelectric potentials associated with muscle activity constitute
the -Answer- electromyogram
17. 17. The valve between the left atrium and left ventricle is the -Answer-
mitral (bicus- pid)
18. 18. Blood cell counting is typically done in a department called -Answer-
hematology
19. 19. A narrowing of a body passage or opening is called -Answer- stenosis
20. 20. The intrinsic pacemaker of the heart is the -Answer- SA node (sinoatria
node)
21. 21. The brain structure(s) providing primary subconscious control of arte-
rial pressure respiration is (are) the -Answer- pons and medulla
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