Circulatory System

What are the 3 main parts of the circulatory system?

Which blood vessels carry oxygen throughout the body?

Which blood vessels carry blood back to the heart?

Which blood vessels carry blood away from the heart?

What are the top chambers of the heart that receive blood called?

What are the bottom chambers of the heart that pump blood to the lungs and rest of the body called?

What is the liquid part of blood called?

What component of blood fights infection?

What component of blood is important for clotting?

What prevents the blood from flowing backwards as the veins carry it back to the heart?