Human circulatory system

Front

What do arteries do?

Back

Arteries carry blood away from the heart.

Front

What are the five main parts of the circulatory system?

Back

Heart, blood, veins, arteries, capillaries.

Front

What is the role of red blood cells?

Back

Red blood cells are responsible for carrying oxygen and carbon dioxide to body cells.

Front

What ensures the unidirectional flow of blood through the heart?

Back

Valves within the heart that prevent backflow of blood.

Front

What is the function of valves in veins?

Back

Valves in veins prevent backflow of blood in the absence of high blood pressure.

Front

What is the main function of the heart?

Back

The heart pumps blood throughout the body.

Front

What is plasma?

Back

Plasma is the liquid component of blood that carries cells, nutrients, and waste.

Front

What are capillaries?

Back

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

Front

What is the difference between veins and arteries?

Back

Veins carry blood to the heart, while arteries carry blood away from the heart.

Front

What is the role of white blood cells?

Back

White blood cells are responsible for fighting infections and protecting the body.