Q. What is the function of the pulmonary circulation?
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A.
Deliver oxygenated blood to the body
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B.
Transport deoxygenated blood to the lungs
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C.
Supply blood to the heart muscle
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D.
Regulate blood pressure
Solution
Pulmonary circulation transports deoxygenated blood to the lungs for oxygenation.
Correct Answer:
B
— Transport deoxygenated blood to the lungs
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Q. What is the main artery that supplies blood to the heart muscle?
-
A.
Coronary artery
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B.
Pulmonary artery
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C.
Aorta
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D.
Subclavian artery
Solution
The coronary artery supplies blood to the heart muscle.
Correct Answer:
A
— Coronary artery
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Q. What is the primary function of the left ventricle in the heart?
-
A.
Pumping deoxygenated blood to the lungs
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B.
Pumping oxygenated blood to the body
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C.
Receiving blood from the body
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D.
Receiving blood from the lungs
Solution
The left ventricle pumps oxygenated blood to the body through the aorta.
Correct Answer:
B
— Pumping oxygenated blood to the body
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Q. What is the role of the aortic valve?
-
A.
Prevent backflow into the left atrium
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B.
Prevent backflow into the left ventricle
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C.
Prevent backflow into the right atrium
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D.
Prevent backflow into the right ventricle
Solution
The aortic valve prevents backflow of blood into the left ventricle.
Correct Answer:
B
— Prevent backflow into the left ventricle
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Q. Which of the following is NOT a component of the cardiovascular system?
-
A.
Heart
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B.
Blood vessels
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C.
Lungs
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D.
Blood
Solution
The lungs are part of the respiratory system, not the cardiovascular system.
Correct Answer:
C
— Lungs
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Q. Which structure separates the left atrium from the left ventricle?
-
A.
Tricuspid valve
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B.
Pulmonary valve
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C.
Mitral valve
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D.
Aortic valve
Solution
The mitral valve separates the left atrium from the left ventricle.
Correct Answer:
C
— Mitral valve
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Q. Which vein carries oxygenated blood from the lungs to the heart?
-
A.
Superior vena cava
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B.
Inferior vena cava
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C.
Pulmonary vein
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D.
Coronary vein
Solution
The pulmonary vein carries oxygenated blood from the lungs to the heart.
Correct Answer:
C
— Pulmonary vein
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