Heart

Front

What type of muscle is the heart?

Back

Involuntary muscle.

Front

Which blood vessel carries blood toward the heart?

Back

Veins.

Front

What is the main artery in our body carrying oxygen-rich blood?

Back

Aorta.

Front

How big is your heart?

Back

About the size of your fist.

Front

Which chamber of the heart pumps oxygen-rich blood to the aorta?

Back

Left Ventricle.

Front

What is the function of the heart?

Back

To pump blood throughout the body.

Front

What are the two main types of blood vessels?

Back

Arteries and veins.

Front

What is the role of arteries?

Back

To carry oxygen-rich blood away from the heart.

Front

What is the role of veins?

Back

To carry deoxygenated blood back to the heart.

Front

What is the heart's rhythm controlled by?

Back

The sinoatrial (SA) node.