Front

What is the main function of the circulatory system?

Back

To transport oxygen, nutrients, hormones, and waste products throughout the body.

Front

What are the main components of the circulatory system?

Back

Heart, blood vessels (arteries, veins, capillaries), and blood.

Front

What is the role of the left atrium in the heart?

Back

The left atrium receives oxygen-rich blood from the lungs.

Front

What is the role of the right atrium in the heart?

Back

The right atrium receives oxygen-poor blood returning from the body.

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygen-rich blood away from the heart, while veins carry oxygen-poor blood back to the heart.

Front

What is blood pressure?

Back

The force exerted by circulating blood on the walls of blood vessels.

Front

What is heart rate?

Back

The number of times the heart beats per minute.

Front

What is the function of capillaries?

Back

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

Front

What is the role of the respiratory system in relation to the circulatory system?

Back

The respiratory system provides oxygen to the blood and removes carbon dioxide from it.

Front

What is the significance of the left ventricle?

Back

The left ventricle pumps oxygen-rich blood to the entire body.