Circulatory System

Front

What is the main organ of the circulatory system?

Back

heart

Front

How many types of blood vessels are in our body?

Back

3

Front

The circulatory system works with the ___________ system to provide our body with oxygen.

Back

respiratory

Front

The heart has ___ chambers.

Back

4

Front

The circulatory system works with the __________ system to obtain energy from nutrients that we eat.

Back

digestive

Front

The job of the heart is to...

Back

pump blood around the body.

Front

Do veins carry oxygen poor blood back to the heart?

Back

True

Front

What are the smallest blood vessels?

Back

Capillaries

Front

Deoxygenated

Back

Oxygen-poor

Front

What function does the heart do?

Back

The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.