The Circulatory System

Why is blood sometimes called 'The river of life'?

• Because like a river, it is all water.

• Because it collects all the waste away from the cells.

• Because it flows from top to bottom.

• Because it carries oxygen and nutrients to trillions of cells in our bodies.

The main organs of the circulatory system are:

• blood

• arteries

• veins

• capillaries

• heart

(a)   carries oxygen and nutrients to all the cells in our body.

Blood is both tissue and a fluid. Is this statement true or false?

• False

• True

What does the circulatory system do for the body?

The heart is the most important organ of the circulatory system. Is this statement true or false?

• False

• True

The heart is:

• like a bag that carries blood.

• a muscle, it's the size of your fist.

• where we keep our feelings.

The heart's main function is to _ _ _ _ blood throughout the body by way of the circulatory system.

(a)  

Please complete the sentence:

The heart is made up of _________ parts called _________.

• muscle, blood

• cells, red and white blood cells

• parts, chambers

• tubes, veins

Which of the following statements show that they are good at keeping a healthy heart:

• Going around the mall on an electric scooter

• Drinking lots of water

• Walking the dog

• Playing computer games all afternoon

• Eating fruits and vegetables