This organ pumps blood throughout your body.
What is the heart
These blood vessels carry blood away from the heart.
What are arteries?
Blood picks up oxygen in this organ.
What are the lungs?
These two chambers receive blood entering the heart.
What are the atria?
The heart has this many chambers.
What are four
These blood vessels carry blood back to the heart.
What are veins?
This is the movement of blood through the body.
What is circulation?
These two chambers pump blood out of the heart.
What are the ventricles?
These structures prevent blood from flowing backward in the heart.
What are valves?
This type of blood vessel is only one cell thick to allow diffusion.
What are capillaries?
This waste gas is removed from the blood in the lungs.
What is carbon dioxide?
Oxygen-rich blood returns from the lungs to the heart through these vessels.
What are pulmonary veins?
Name the four chambers of the heart
Right atrium, left atrium, right ventricle, left ventricle
Most arteries carry blood that is high in this.
What is oxygen?
Blood flows from the right ventricle to the lungs through this artery.
What is the pulmonary artery?
Blood flows from the left atrium into this chamber.
What is the left ventricle?
This side of the heart pumps blood to the lungs.
What is the right side of the heart?
Valves are especially important in this type of blood vessel.
What are veins?
The valve between the right atrium and right ventricle is called this.
What is the tricuspid valve?
This valve controls blood flow between the left atrium and left ventricle.
What is the mitral (bicuspid) valve?