circulatory system

What does your heart do?

• pumps blood through your body

• protects your body

• makes your body exercise

• breathes oxygen in your body

Your heart is about the size of your __________.

• mouth

• fist

• feet

• head

What does circulate mean?

• pump blood

• beat quickly

• go around and around

You can feel your heart beating when you feel your _____________.

• pulse

• breathing

• stomach growling

Your heart is a _____________.

• tube

• muscle

• vein

• bone

These cells, in the blood, carry oxygen and give the blood its color.

• white blood cells

• plasma

• platelets

• red blood cells

The cells in the blood that help fight germs like bacteria and viruses

• red blood cells

• platelets

• white blood cells

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

The circulatory system works with the ___________ system to provide our body with oxygen.

• respiratory

• digestive

• muscular

What is the circulatory system made up of?

• Lungs, blood, blood vessels

• Liver, kidneys, and stomach

• Heart, Blood Vessels, and Blood