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Human Circulatory System and Cardiovascular Health Quiz

#1

Which chamber of the heart receives oxygenated blood from the lungs?

Left atrium
Explanation

Receives oxygenated blood from the lungs.

#2

What is the primary function of red blood cells in the circulatory system?

Transporting oxygen
Explanation

Primary function is oxygen transportation.

#3

What is the average resting heart rate for adults?

70-80 beats per minute
Explanation

Average resting heart rate for adults.

#4

Which valve separates the left atrium from the left ventricle in the heart?

Bicuspid valve (mitral valve)
Explanation

Separates left atrium from left ventricle.

#5

What is the function of the coronary arteries in the heart?

Transporting oxygenated blood to the heart muscle
Explanation

Function is transporting oxygenated blood to heart muscle.

#6

Which gas is transported by red blood cells in the circulatory system?

Oxygen
Explanation

Red blood cells transport oxygen.

#7

Which blood vessel carries oxygenated blood away from the heart?

Artery
Explanation

Carries oxygenated blood away from the heart.

#8

What is the medical term for high blood pressure?

Hypertension
Explanation

Medical term for high blood pressure.

#9

What is the main function of the cardiovascular system?

Circulating blood and oxygen
Explanation

Main function is circulating blood and oxygen.

#10

Which of the following is a symptom of a heart attack?

Chest pain or discomfort
Explanation

Symptom includes chest pain or discomfort.

#11

What is the name of the largest artery in the human body?

Aorta
Explanation

Largest artery in the human body.

#12

Which of the following can contribute to the development of atherosclerosis?

High blood pressure
Explanation

High blood pressure contributes to atherosclerosis.

#13

Which of the following is NOT a risk factor for cardiovascular diseases?

Regular exercise
Explanation

Regular exercise is not a risk factor.

#14

What is the role of platelets in the blood?

Clotting to prevent bleeding
Explanation

Role is clotting to prevent bleeding.

#15

In the human circulatory system, what is the function of veins?

Carry deoxygenated blood away from the heart
Explanation

Function is carrying deoxygenated blood from the heart.

#16

What is the condition characterized by the accumulation of fatty deposits on the inner walls of arteries?

Atherosclerosis
Explanation

Condition characterized by artery fatty deposits.

#17

In the cardiac cycle, what does diastole refer to?

Relaxation of the heart chambers
Explanation

Diastole refers to heart chamber relaxation.

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