1.  Heart anatomy: Identify this specific structure of the heart. B
right atrium
Incorrect.
left atrium  
Correct!
right ventricle
Incorrect.
left ventricle
Incorrect.
aorta
Incorrect.

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QUIZ_1

2. Heart anatomy:  Identify this specific structure of the heart. C
right atrium
Incorrect.
left atrium
Incorrect.
right ventricle   
Correct!
left ventricle
Incorrect.
aorta
Incorrect.

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QUIZ_2

3. What valve connects the left atrium and the left ventricle? A
bicuspid valve  
Correct!
tricuspid valve
Incorrect.
aortic valve
Incorrect.
pulmonary valve
Incorrect.


   
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4. Which of the following heart chambers has the thickest myocardium layer? D
right atrium
Incorrect.
left atrium
Incorrect.
right ventricle
Incorrect.   
left ventricle 
Correct!
aorta
Incorrect.

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5. The mediastinum C
is found inside a heart chamber.
Incorrect.
helps heart valves function properly.
Incorrect.
is a partition of the thoracic cavity that holds the heart. 
Correct!
is part of the cardiac conduction system.
Incorrect.
is found only in diseased hearts.
Incorrect.

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6. Which of the following represents the next anatomical structure in the flow of blood? pulmonary arteries, lungs, pulmonary veins B
right atrium
Incorrect.
left atrium 
Correct!
right ventricle
Incorrect.  
left ventricle
Incorrect.
aorta
Incorrect.

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7. Which of the following represents  the next anatomical structure in the flow of blood? pulmonary valve, pulmonary trunk, pulmonary arteries A
lungs  
Correct!
aorta
Incorrect.
right ventricle
Incorrect.
left AV valve
Incorrect.
right AV valve
Incorrect.

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8. In a normal electrocardiogram, the depolarization of the atrial myocardium is represented by which of the following signals? A
P wave  
Correct!
QRS complex
Incorrect.
T wave
Incorrect.
none of the above
Incorrect.



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9. In a normal electrocardiogram, the repolarization  of the ventricles is represented by which of the following signals? C
P wave
Incorrect.
QRS complex
Incorrect.
T wave   
Correct!
none of the above
Incorrect.



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10. The term systole means to ____, and diastole means to ______. B
enlarge /shrink
Incorrect.
contract/dilate  
Correct!
gain nutrients/lose nutrients
Incorrect.
gain power/lose power
Incorrect.



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11.  Which of the following best represent Starling's law? C
The heart needs to pump in order to sustain life.
Incorrect.
Atria always depolarize before the ventricles.
Incorrect.
Increased stretching of the cardiac muscle increases the stroke volume.  
Correct!
Cardiac output is related to both stroke volume and heart rate.
Incorrect.
Exercise almost always increases heart rate.
Incorrect.

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