Circulatory System

What does your heart do?

• pumps blood through your body

• protects your body

• helps your exercize

Your heart is about the size of your __________.

• mouth

• fist

• show

Blood carries ____________ to the heart.

• vitamins

• germs

• oxygen

Blood is carried back to your heart in little tubes called ____________.

• veins

• arteries

• hoses

Your heart is made up of what type of muscle?

• artery

• cardiac

• vein

• smooth

Which is NOT a way to exercise your heart?

• Running

• Sitting on the couch

• Swimming

Which describes all the parts of the circulatory system?

• heart, lungs, stomach, muscles

• heart, blood, arteries, and veins

• bones, skin, hair

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

The job of the heart is to . . .

• pump blood around the body.

• send food to the small intestines.

• break down food.

• give energy to the body.

How many types of blood vessels are in our body?

• 1
• 2
• 3
• 4