Circulatory System

Front

What is the main function of the circulatory system?

Back

The main function of the circulatory system is to transport materials such as oxygen, nutrients, hormones, and waste products throughout the body.

Front

How does exercise affect heart rate?

Back

If a person exercises, then their heart rate will increase.

Front

Which system delivers oxygen to cells during physical activity?

Back

The circulatory system responds by delivering more oxygen to cells during physical activity.

Front

What do blood vessels do?

Back

Blood vessels transport nutrients and oxygen to various parts of the body.

Front

What role do white blood cells play in the body?

Back

White blood cells help protect the body from diseases by fighting and destroying germs.

Front

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

Back

The heart pumps blood throughout the body, supplying oxygen and nutrients while removing waste products.

Front

What are arteries?

Back

Arteries are blood vessels that carry oxygen-rich blood away from the heart to the body's tissues.

Front

What are veins?

Back

Veins are blood vessels that carry oxygen-poor blood back to the heart.

Front

What is the function of capillaries?

Back

Capillaries are tiny blood vessels where the exchange of oxygen, carbon dioxide, nutrients, and waste occurs between blood and tissues.

Front

What is blood made of?

Back

Blood is made of red blood cells, white blood cells, platelets, and plasma.