Front

What is the primary role of white blood cells?

Back

Fight infections.

Front

What does blue blood represent in diagrams?

Back

It shows that the blood is carrying carbon dioxide.

Front

True or False: Arteries carry blood away from the heart.

Back

True.

Front

Where does the exchange of oxygen and carbon dioxide occur in the lungs?

Back

In the alveoli.

Front

What is the primary role of plasma in the blood?

Back

Transport nutrients and hormones.

Front

What are the main components of blood?

Back

Red blood cells, white blood cells, plasma, and platelets.

Front

What is the function of red blood cells?

Back

To transport oxygen throughout the body.

Front

What is the role of platelets in the blood?

Back

To help clot blood and prevent bleeding.

Front

What is the heart's function in the circulatory system?

Back

To pump blood throughout the body.

Front

What are veins?

Back

Blood vessels that carry blood back to the heart.