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Anat/Phys Cardiovascular System #2
Test Description: Anatomy and Physiology Explorations
Instructions: Answer all questions to get your test result.
1) Which wave of an ECG represents atrial depolarization?
A
Q wave
B
P wave
C
T wave
D
R wave
2) The T wave represents
A
atrial repolarization.
B
ventricular depolarization.
C
ventricular repolarization.
D
atrial depolarization.
3) Which ECG wave(s) represent ventricular depolarization?
A
P and Q waves
B
P wave
C
T wave
D
QRS waves
4) The amount of blood pumped out by each side of the heart in one minute is the
A
cardiac output.
B
stroke volume.
C
pulse pressure.
D
ejection fraction.
5) The stroke volume is the volume of blood
A
pumped out by a ventricle with each heartbeat.
B
in each atria during diastole.
C
pumped out by an atrium with each heartbeat.
D
in the systemic circulation.
6) The smallest of all blood vessels are the
A
venules.
B
capillaries.
C
arterioles.
D
arteries.
7) The tunica of an artery or vein that contains smooth muscle is the
A
externa.
B
media.
C
initma.
D
externa and media.
8) What structures control the flow of blood through true capillaries?
A
skeletal muscle
B
precapillary sphincters
C
postcapillary sphincters
D
valves
9) What is a measure of the pressure in arteries at the peak of ventricular contraction?
A
vital pressure
B
pulse pressure
C
systolic pressure
D
diastolic pressure
10) All of the following affect blood pressure EXCEPT
A
renal factors.
B
neural factors.
C
chemicals.
D
height.
*select an answer for all questions
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