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Heart
Test Description: The cardiovascular system: The Heart
Instructions: Answer all questions to get your test result.
1) The heart is enclosed in a sac called
A
Heart sac
B
Perineum
C
Pericarditis
D
Pericardium
2) Blood flows from the left ventricle through the
A
bicuspid
B
tricuspid valve
C
aortic semilunar valve
D
pulmonary semilunar valve
3) Cardiac output is
A
blood flow through the heart during one complete heartbeat
B
the amount of blood pumped out by each ventricle in 1 minute
C
the volume of blood remaining in a ventricle after it has contracted
D
the volume of blood pumped out by one ventricle with each beat
4) The second heart sound "dupp" is actually the sound of the
A
semilunar valves closing
B
ventricles contracting
C
atrioventricular valves closing
D
atria contracting
5) Which of these delivers blood to the left atrium
A
superior vena cava
B
pulmonary arteries
C
pulmonary veins
D
coronary sinus
6) Pectinate muscles are found in the ____; trabeculae carneae are found in the ___.
A
atrium, ventricles
B
superior vena cava, inferior vena cava
C
aorta, pulmonary trunk
D
ventricles, atrium
7) An average heartbeat, or cardiac cycle, lasts approximately
A
80 seconds
B
8.0 seconds
C
.008 seconds
D
0.80 seconds
8) The P wave of the ECG represents
A
ventricular repolarization
B
ventricular depolarization
C
atrial repolarization
D
atrial depolarization
9) An incomplete interatrial septum is called
A
foramen ovale
B
fossa ovalis
C
ductus arteriosus
D
ligamentum arteriosum
10) What node typically generates impulses about 75 times every minute
A
Sinoatrial node
B
Inguinal node
C
Atrioventricular node
D
Purkinje node
*select an answer for all questions
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