Question 1

What is the main organ of the circulatory system?

Accepted Answer

Heart

Answer

Liver

Answer

Stomach

Answer

Lungs

Question 2

What is the job of the circulatory system?

Accepted Answer

Transporting blood and nutrients throughout the body

Answer

Breathing

Answer

Digesting food

Answer

Thinking

Question 3

What is the name of the liquid portion of blood?

Accepted Answer

Plasma

Answer

Platelets

Answer

White blood cells

Answer

Red blood cells

Question 4

What is the job of red blood cells?

Accepted Answer

Carrying oxygen throughout the body

Answer

Fighting infections

Answer

Clotting blood

Answer

Breaking down waste

Question 5

What is the job of white blood cells?

Accepted Answer

Fighting infections and disease

Answer

Helping blood to clot

Answer

Transporting oxygen

Answer

Breaking down waste

Question 6

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

Accepted Answer

Aorta

Answer

Coronary artery

Answer

Carotid artery

Answer

Pulmonary artery

Question 7

What is the name for the tiny blood vessels where oxygen and nutrients are exchanged with body tissues?

Accepted Answer

Capillaries

Answer

Arteries

Answer

Valves

Answer

Veins

Question 8

What is the name for the condition where the arteries become clogged with fatty deposits?

Accepted Answer

Atherosclerosis

Answer

Anemia

Answer

Leukemia

Answer

Hemophilia

Question 9

What is the name of the valve that separates the left atrium from the left ventricle?

Accepted Answer

Mitral valve

Answer

Tricuspid valve

Answer

Aortic valve

Answer

Pulmonary valve

Question 10

What is a heart attack?

Accepted Answer

When blood flow to the heart is blocked

Answer

When the heart is too weak

Answer

When the heart beats too fast

Answer

When the heart beats too slow

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