Front

What organ does the blood flow to in order to pick up oxygen?

Back

Lung

Front

Which structure of the heart prevents the mixing of oxygen-rich blood and oxygen-poor blood?

Back

Septum

Front

What is the major artery at the top of the heart that sends oxygenated blood from the left ventricle to the rest of the body?

Back

Aorta

Front

What is the function of a valve in the heart?

Back

A flap of tissue that prevents blood from flowing backward.

Front

Which number is the vena cava in a diagram of the heart?

Back

3

Front

What is the primary function of the heart?

Back

To pump blood throughout the body.

Front

What are the two main types of blood vessels in the circulatory system?

Back

Arteries and veins.

Front

What is the role of the pulmonary artery?

Back

To carry deoxygenated blood from the heart to the lungs.

Front

What is the difference between oxygenated and deoxygenated blood?

Back

Oxygenated blood is rich in oxygen, while deoxygenated blood is low in oxygen.

Front

What is the function of the left atrium?

Back

To receive oxygenated blood from the lungs.