Question 1

Which of the following is the main organ responsible for pumping blood in the human body?

Accepted Answer

Heart

Answer

Lungs

Answer

Liver

Answer

Kidneys

Question 2

Which blood vessels carry oxygenated blood away from the heart?

Accepted Answer

Arteries

Answer

Lymphatics

Answer

Capillaries

Answer

Veins

Question 3

Which of the following is responsible for carrying oxygen in the blood?

Accepted Answer

Red blood cells

Answer

White blood cells

Answer

Platelets

Answer

Plasma

Question 4

Which of the following chambers of the heart receives oxygenated blood from the lungs?

Accepted Answer

Left atrium

Answer

Right atrium

Answer

Right ventricle

Answer

Left ventricle

Question 5

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

Accepted Answer

Bladder

Answer

Heart

Answer

Blood

Answer

Blood vessels

Question 6

Which of the following is responsible for carrying deoxygenated blood back to the heart?

Accepted Answer

Veins

Answer

Arteries

Answer

Lymphatics

Answer

Capillaries

Question 7

Which of the following is the smallest blood vessel in the human body?

Accepted Answer

Capillaries

Answer

Arteries

Answer

Veins

Answer

Venules

Question 8

Which of the following chambers of the heart pumps oxygenated blood to the rest of the body?

Accepted Answer

Left ventricle

Answer

Left atrium

Answer

Right atrium

Answer

Right ventricle

Question 9

Which of the following is responsible for transporting oxygen and nutrients to the body's tissues?

Accepted Answer

Blood

Answer

Lymph

Answer

Nerves

Answer

Muscles

Question 10

What is the main function of veins in the circulatory system?

Accepted Answer

To carry deoxygenated blood back to the heart

Answer

To carry nutrients to the body's tissues

Answer

To carry oxygenated blood from the heart to the body

Answer

To regulate blood pressure

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