Circulatory System

Which of the following is the major organ of the Circulatory System?

• Heart
• Brain
• Stomach
• Kidney

True or False: Human blood is blue.

• True
• False

Which of the following gives blood its color?

• Red Blood Cells
• White Blood Cells
• Plalelets
• Plasma

Which of the following connects arteries and veins?

• Capillaries
• Atria
• Valves
• Ventricles

Which of the following is NOT in our blood?

• Red Blood Cells
• Blue Blood Cells
• Platelets
• White Blood Cells

Which of the following fights off germs and diseases?

• White Blood Cells
• Platelets
• Red Blood Cells
• Plasma

Which of the following help us to stop bleeding when we get a cut?

• Platelets
• Red Blood Cells
• White Blood Cells
• Plasma

Your heart is about the size of your....

• Fist
• Eye
• Lung
• Brain

True or False: A doctor uses a stethoscope to listen to a person's heart.

• True
• False

Which type of blood vessel carries blood AWAY from the heart?

• Arteries
• Veins
• Capillaries