Circulatory and Respiratory System

What is the main organ of the circulatory system?

• 
• 
• 
• 

Give another name for the circulatory system?

• A transport system

• A body system

• A carrier system

• A blood system

Which blood vessels carry blood rich in oxygen?

• blood vessels

• capillaries

• veins

• arteries

Which blood vessels carry blood rich in carbon dioxide?

• blood vessels

• capillaries

• arteries

• veins

Which bones protect the heart?

• ribcage

• spine

• femur

• skull

The heart is the size of your ___________.

__________ blood cells help the body to fight bacteria and viruses.

_________ blood cells carry oxygen in the blood round the body.

What type of muscle is the heart?

• triceps

• biceps

• voluntary

• cardiac

What is the average pulse rate of a person at rest?

• 60-70bpm

• 70-80bpm

• 80-90bpm

• 90-100bpm