Circulatory System Vocabulary

Front

What are very thin-walled blood vessels that connect arteries and veins?

Back

Capillaries

Front

What are thick-walled blood vessels that carry oxygen-rich blood away from the heart?

Back

Arteries

Front

What are small cell fragments in the blood that help clot wounds?

Back

Platelets

Front

What are large cells within the blood that fight bacteria and other pathogens?

Back

White blood cells

Front

What structures prevent the backflow of blood in the heart and veins?

Back

Valves

Front

What is the liquid component of blood that carries cells and nutrients?

Back

Plasma

Front

What type of blood cells are responsible for transporting oxygen?

Back

Red blood cells

Front

What is the main function of arteries in the circulatory system?

Back

To carry oxygen-rich blood away from the heart.

Front

What is the main function of veins in the circulatory system?

Back

To carry deoxygenated blood back to the heart.

Front

What is the role of capillaries in the circulatory system?

Back

To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.