Exploring the Circulatory System

Front

What is the main function of the circulatory system?

Back

To transport nutrients, gases, and wastes.

Front

How does blood act as the body's 'messenger'?

Back

Blood delivers nutrients and oxygen to cells.

Front

Why does heart rate increase after exercise?

Back

The body needs more oxygen and must remove more carbon dioxide, so the heart and lungs work faster.

Front

What are capillaries?

Back

Tiny blood vessels where the exchange of oxygen and carbon dioxide takes place.

Front

What does blood carry to cells?

Back

All of the above: Water, Oxygen, and Food.

Front

What are arteries?

Back

Blood vessels that carry blood away from the heart.

Front

What are veins?

Back

Blood vessels that carry blood back to the heart.

Front

What is the role of the heart in the circulatory system?

Back

To pump blood throughout the body.

Front

What is oxygenated blood?

Back

Blood that has picked up oxygen from the lungs.

Front

What is deoxygenated blood?

Back

Blood that has delivered oxygen to the body's cells and is returning to the heart.