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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
P wave
B
Q wave
C
R wave
D
T wave
2) The T wave represents
A
atrial repolarization.
B
ventricular repolarization.
C
ventricular depolarization.
D
atrial depolarization.
3) Which ECG wave(s) represent ventricular depolarization?
A
P wave
B
T wave
C
QRS waves
D
P and Q waves
4) The amount of blood pumped out by each side of the heart in one minute is the
A
stroke volume.
B
cardiac output.
C
ejection fraction.
D
pulse pressure.
5) The stroke volume is the volume of blood
A
pumped out by a ventricle with each heartbeat.
B
pumped out by an atrium with each heartbeat.
C
in each atria during diastole.
D
in the systemic circulation.
6) The smallest of all blood vessels are the
A
arterioles.
B
capillaries.
C
venules.
D
arteries.
7) The tunica of an artery or vein that contains smooth muscle is the
A
media.
B
externa.
C
initma.
D
externa and media.
8) What structures control the flow of blood through true capillaries?
A
valves
B
postcapillary sphincters
C
skeletal muscle
D
precapillary sphincters
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
chemicals.
C
neural factors.
D
height.
*select an answer for all questions
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