front 1 What is the cardiac cycle?
| back 1 B |
front 2 Blood flows through the heart from high to low, according to the ___ gradient.
| back 2 B |
front 3 As the left ventricle contracts, its pressure rises above the pressures in the left atrium and the aorta. Then blood will flow into the aorta. Which valves need to be open or closed at this point in the cardiac cycle?
| back 3 C |
front 4 As the left ventricle relaxes, its pressure will fall. When the left ventricle is completely relaxed, which valves will be open or closed?
| back 4 B |
front 5 The sound of vibration of the heart walls due to a closing aortic valve is heard during the ___ heart sound. Question 5 options: S1 S2 S3 S4 | back 5 B |
front 6 What is the best location to place the stethoscope to hear the sound associated with the aortic valve closing? 2nd intercostal space, right sternal border 2nd intercostal space, left sternal border 5th intercostal space, left sternal border 5th intercostal space, midclavicular line | back 6 A |
front 7 Place the events of the cardiac cycle in order, starting with event #1 in figure 17.17.
| back 7 3,1,4,2 |
front 8 80% of the blood that flows from the atria into the ventricles flows ___.
| back 8 B |
front 9 diastole | back 9 no data |
front 10 systole | back 10 no data |
front 11 end-diastolic volume | back 11 no data |
front 12 end-systolic volume | back 12 no data |
front 13 isovolumetric | back 13 no data |
front 14 ejection | back 14 no data |
front 15 The right ventricle's maximum pressure is about ____ mm Hg. The left ventricle's maximum pressure is about____ mm Hg. | back 15 28, 118 |
front 16 What is considered a normal value for heart rate?
| back 16 B |
front 17 How does the amount of blood pumped by the right ventricle compare to that pumped by the left ventricle?
| back 17 C |
front 18 The ejection fraction is the % of blood in the ventricle that is pumped out during systole. What is a normal ejection fraction?
| back 18 C |
front 19 Which of the following has a positive chronotropic effect on the heart (as in, it makes the heart beat faster)?
| back 19 C |
front 20 What effect does a positive chronotropic agent have on cardiac output?
| back 20 A |
front 21 What effect will vagus nerve stimulation have on cardiac output? increased cardiac output due to increased heart rate decreased cardiac output due to increased heart rate decreased cardiac output due to decreased heart rate increased cardiac output due to decreased heart rate | back 21 C |
front 22 Aldosterone and ADH are 2 hormones that increase blood volume. What effect does increasing blood volume have on cardiac output?
| back 22 A |
front 23 Why do trained athletes generally have a lower resting heart rate?
| back 23 B |
front 24 Pulmonary congestion and pulmonary edema, from fluid backing up in the lungs, is a common symptom of which type of heart failure?
| back 24 B |