The Circulatory System

What is the main organ of the circulatory system?

• small intestine

• bone

• lungs

• heart

How does the heart work?

• It pumps blood first to the lungs, back to the heart and then around the rest of the body.

• It pumps blood first to the rest of the body, back to the lungs and then to the heart.

• It pumps blood around the rest of the body, back to the heart and then to the lungs,

______________ are the smallest blood vessels.

• Arteries
• Veins
• Capillaries

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

• respiratory
• digestive
• muscular
• skeletal

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.

Which type of blood vessel takes blood away from the heart?

• Artery

• Vein

• Capillary

• Trachea

Which type of blood vessel brings blood back to the heart?

• Artery

• Vein

• Capillary

• Bronchus

Which type of blood vessel has valves?

• Artery

• Vein

• Capillary

How many chambers are in the heart?

• 1

• 2

• 3

• 4