Circulatory System

Front

What is the primary function of the circulatory system?

Back

To transport gas, nutrients, and waste around your body and to and from each cell.

Front

What do red blood cells do?

Back

They carry gas, nutrients, and waste to and from cells.

Front

What is the size of the human heart compared to?

Back

About the size of your fist.

Front

Which system works with the circulatory system to obtain energy from nutrients?

Back

The digestive system.

Front

What are the tubes called that carry blood away from the heart?

Back

Arteries.

Front

What is the role of veins in the circulatory system?

Back

Veins carry blood back to the heart.

Front

What is the liquid part of blood called?

Back

Plasma.

Front

What gas do red blood cells carry from the lungs to the body?

Back

Oxygen.

Front

What is the main organ of the circulatory system?

Back

The heart.

Front

What are capillaries?

Back

Tiny blood vessels where gas and nutrient exchange occurs.