Front

What are the two larger types of blood vessels?

Back

Arteries and veins.

Front

What is the main function of the heart?

Back

The heart is a pump that moves blood throughout the body.

Front

What protects the lungs in the human body?

Back

The rib cage.

Front

What is the main function of the respiratory system?

Back

To provide oxygen and remove carbon dioxide from the body.

Front

What do your lungs take in when you breathe?

Back

Oxygen.

Front

What do your lungs remove when you breathe?

Back

Carbon dioxide.

Front

What is the role of arteries in the circulatory system?

Back

Arteries carry oxygen-rich blood away from the heart to the body.

Front

What is the role of veins in the circulatory system?

Back

Veins carry oxygen-poor blood back to the heart.

Front

What is the diaphragm's role in breathing?

Back

The diaphragm helps to expand and contract the lungs during breathing.

Front

What is oxygen's role in the body?

Back

Oxygen is essential for cellular respiration, which produces energy.