Deck 37: Cardiovascular Physiology

Question 1

To listen to the aortic semilunar valve, you would place your stethoscope in the ________.

A) fifth right intercostals space
B) second intercostals space to the left of the sternum
C) fifth intercostal space inferior to the left nipple
D) second intercostals space to the right of the sternum

Answer 1

D

Question 2

The Q-R-S complex on an ECG represents ________.

A) atria repolarization
B) ventricular depolarization
C) atria depolarization
D) ventricular repolarization

Answer 2

B

Question 3

A recording of how the volume of blood at a given pressure point in the body changes as a pressure wave passes through that point is called a(n) ________.

A) plethysmogram
B) sphygmomanometer
C) ECG
D) none of the above

Answer 3

A

Question 4

Which of these vessels receive blood during ventricular systole?

A) pulmonary arteries only
B) pulmonary veins only
C) both the aorta and pulmonary trunk
D) aorta only

Question 5

The P wave of a normal electrocardiogram indicates the ________.

A) ventricular repolarization
B) ventricular depolarization
C) atrial repolarization
D) atrial depolarization

Question 6

Which of the events below does NOT occur when the semilunar valves are open?

A) blood enters the pulmonary artery and aorta
B) ventricles are in diastole
C) AV valves are closed
D) ventricles are in systole

Question 7

During the period of ventricular filling ________.

A) the atria remain in diastole
B) pressure in the heart is at its peak
C) blood flows passively through the atria and the AV valves are open
D) none of the above

Question 8

The first sound recorded in blood pressure is the ________.

A) diastolic pressure
B) systolic pressure
C) pulse pressure
D) none of the above

Question 9

The tricuspid valve is closed ________.

A) by the movement of blood from the atrium to the ventricle
B) while the ventricle is in diastole
C) while the atrium is contracting
D) when the ventricle is in systole

Question 10

The instrument used to record the electrical events of the heart is an ________.

A) EMG
B) ECG
C) EOG
D) EEG

Question 11

Which artery is commonly used to record blood pressure?

A) ulnar artery
B) brachial artery
C) axillary artery
D) radial artery

Question 12

Which vessel of the heart receives blood during right ventricular systole?

A) pulmonary veins
B) vena cava
C) aorta
D) pulmonary trunk

Question 13

Average blood pressure in a typical male is ________.

A) 110/70
B) 80/120
C) 150/110
D) 120/80

Question 14

The pulse pressure is ________.

A) systolic pressure divided by the diastolic pressure
B) systolic pressure plus diastolic pressure
C) systolic pressure minus diastolic pressure
D) none of the above

Question 15

Normal heart sounds are caused by which of the following events?

A) friction of the blood against the chamber walls
B) opening and closing of heart valves
C) excitation of the SA node
D) closure of the heart valves

Question 16

The instrument used to determine blood pressure is called a ________.

A) plethysmograph
B) sphygmomanometer
C) electrocardiogram
D) none of the above

Question 17

All of the following are common places to take one's pulse EXCEPT ________.

A) radial artery
B) brachial artery
C) common carotid artery
D) popliteal artery

Question 18

The second heart sound is heard during which phase of the cardiac cycle?

A) isovolumetric contraction
B) ventricular ejection
C) isovolumetric relaxation
D) ventricular filling

Question 19

The time require for an impulse to travel from the SA node to the ventricular muscle is ________ on an ECG.

A) S-T segment
B) Q-T interval
C) P-R interval
D) P-R segment

Question 20

The third heart sound can be heard ________.

A) contraction of the atria
B) when the semilunar valves close
C) when the AV valves close
D) when blood flows into the ventricles