Respiratory and Circulatory System

Which part doesn't belong to the circulatory system?

• Heart

• Blood vessels

• Arteries

• Brain

The main job of the circulatory system is to deliver _____ to the cells. (multiple answers possible)

• Food

• Oxygen

• Carbon dioxide

• ATP (energy)

What organ pumps blood?

• Lungs

• Heart

• Liver

• Kidney

What colour is blood (on the poster) when rich with oxygen?

• Red

• Blue

Which vessel is the biggest?

• Arteries

• Veins

• Capillaries

Is the heart a voluntary or involuntary muscle?

• Voluntary

• Involuntary

What element does blood take away from the cells?

• Oxygen

• Carbon dioxide

• Helium

• Nitrogen

Which vessel takes blood back to the heart?

• Artery

• Vein

• Capillaries

Which of the following is not found in blood?

• Plasma

• Red blood cells

• Platelets

• Neurons

The lungs do what to blood?

• Add oxygen and take away carbon dioxide

• Add carbon dioxide and take away oxygen