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Cardiovascular System Anatomy Quiz

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#1

Which chamber of the heart receives oxygen-rich blood from the lungs?

Left atrium
Explanation

Receives oxygenated blood from the lungs.

#2

What is the main function of the cardiovascular system?

Transportation of oxygen
Explanation

Primary function is oxygen transportation.

#3

What is the average resting heart rate for adults?

60-100 beats per minute
Explanation

Normal range for resting heart rate.

#4

Which of the following is NOT a major component of blood?

Plasma
Explanation

Not a cellular component of blood.

#5

Which vessel carries oxygenated blood from the heart to the rest of the body?

Aorta
Explanation

Main artery carrying oxygenated blood.

#6

Which of the following is NOT a major blood vessel of the systemic circulation?

Pulmonary vein
Explanation

Not part of systemic circulation; carries oxygenated blood.

#7

What is the term for the contraction phase of the heart's pumping cycle?

Systole
Explanation

Contraction phase of heart's cycle.

#8

Which valve prevents the backflow of blood from the left ventricle into the left atrium?

Mitral valve
Explanation

Prevents backflow into left atrium.

#9

What is the function of the SA node in the heart?

To conduct electrical impulses
Explanation

Initiates electrical impulses.

#10

What is the term for the phase of the cardiac cycle when the heart is relaxed and filling with blood?

Diastole
Explanation

Heart relaxation and filling phase.

#11

Which vessel carries deoxygenated blood from the heart to the lungs for oxygenation?

Pulmonary artery
Explanation

Carries deoxygenated blood to the lungs.

#12

What is the term for the medical condition characterized by a narrowing of the coronary arteries?

Atherosclerosis
Explanation

Coronary artery narrowing.

#13

Which of the following factors can increase the risk of cardiovascular disease?

Smoking
Explanation

Associated with increased cardiovascular risk.

#14

Which of the following is a risk factor for developing atherosclerosis?

Smoking
Explanation

Contributes to arterial narrowing.

#15

Which of the following is NOT a component of the intrinsic conduction system of the heart?

Purkinje fibers
Explanation

Part of the conduction system.

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