Human Body Systems

Your heart is about the size of your __________.

• mouth

• fist

• show

What does your heart do?

• pumps blood through your body

• protects your body

• helps your exercize

Blood carries ____________ to the heart.

• vitamins

• germs

• oxygen

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

How many types of blood vessels are in our body?

• 1
• 2
• 3
• 4

Veins carry oxygen poor blood back to the heart.

• False

• True

Arteries carry oxygen rich blood away from the heart.

• True

• False

The heart has ___ chambers.

• 1
• 2
• 3
• 4

What does Deoxygenated mean?

• Oxygen-rich
• Blood flow
• Oxygen-poor
• Water Flow

Which is the correct definition of the Circulatory system?

• The system fights disease so the body stays healthy.
• The system that circulates blood and oxygen through the body, consisting of the heart,blood vessels,and blood.
• Breaks down food into smaller pieces and absorbs those nutrients into the body.
• Provides shape and structure for the body.