Circulatory System

Which image shows the circulatory system?

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• 
• 
• 

Name the three parts of the circulatory system.

Answer explanation

heart

blood vessels

blood

What is the function of the heart in the circulatory system?

Answer explanation

The heart acts as a pump. It pumps blood around the body through the

blood vessels.

Match the parts to their function

Answer explanation

Use the useful words to label the three types of blood vessels.

Tick true or false after these statements about blood vessels.

Answer explanation

What is resting heart rate?

Answer explanation

Resting heart rate is the number of times your heart beats per minute when you

are at rest.

What happens to heart rate during exercise?

Answer explanation

Heart rate increases during exercise because the body requires more oxygen

to meet its needs.

Indra measured his resting heart rate for 15 seconds. He counted 19 beats. What was his heart rate in bpm?

• 60

• 78

• 76

• 80

Circle the correct word in each of these sentences about exercise and the heart.

Answer explanation