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Cardiovascular System and Blood Circulation Quiz

#1

Which of the following is not a component of the cardiovascular system?

Kidneys
Explanation

Kidneys are part of the renal system, not the cardiovascular system.

#2

What is the average resting heart rate for adults?

60-80 beats per minute
Explanation

The normal resting heart rate for adults ranges from 60 to 80 beats per minute.

#3

What is the term for the smallest blood vessels in the body?

Capillaries
Explanation

Capillaries are the smallest blood vessels where exchange of nutrients and waste occurs.

#4

What is the name of the large artery that carries oxygen-rich blood away from the heart to the rest of the body?

Aorta
Explanation

The aorta is the large artery that carries oxygenated blood away from the heart to the systemic circulation.

#5

What is the main function of white blood cells in the body?

Fight infections
Explanation

White blood cells play a crucial role in the immune system by fighting infections and foreign invaders.

#6

Which blood vessels carry blood away from the heart?

Arteries
Explanation

Arteries carry oxygenated blood away from the heart to the rest of the body.

#7

What is the name of the valve located between the left atrium and left ventricle?

Mitral valve
Explanation

The mitral valve is situated between the left atrium and left ventricle of the heart.

#8

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

Left atrium
Explanation

The left atrium receives oxygenated blood from the lungs before pumping it to the rest of the body.

#9

Which of the following is not a risk factor for cardiovascular disease?

Regular exercise
Explanation

Regular exercise is a protective factor and reduces the risk of cardiovascular disease.

#10

Which of the following is responsible for the contraction of the heart muscle?

Purkinje fibers
Explanation

Purkinje fibers are specialized cardiac muscle fibers responsible for heart muscle contraction.

#11

What is the term for the condition characterized by high blood pressure?

Hypertension
Explanation

Hypertension refers to the medical condition of high blood pressure.

#12

What is the term for the formation of a blood clot within a blood vessel?

Thrombosis
Explanation

Thrombosis is the formation of a blood clot within a blood vessel, potentially causing blockage.

#13

Which of the following hormones regulates blood pressure and volume?

Aldosterone
Explanation

Aldosterone plays a role in regulating blood pressure and volume by influencing sodium and water balance.

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