Respiratory System

What is the main function of the respiratory system?

• to break food down

• circulate the blood

• supply the blood with oxygen

• controlling the body

How does the respiratory system deliver oxygen to different parts of the body?

• breathing

• inhale carbon dioxide

• circulation

• exhale oxygen

Match the label of the respiratory system!

• a

• nostril

• e

• alveoli

• b

• trachea

• d

• bronchioles

• c

• bronchus

Which part of the body is not used for the respiratory system to work?

• mouth

• small intestine

• nose

• diaphragm

What is the diaphragm's main function?

• pump blood into the lungs

• pump oxygen out of the lungs and pull carbon dioxide into the lungs

• pumping blood

• pump carbon dioxide out of the lungs and pull oxygen into the lungs

Inside each of your lungs there are tubes called bronchi. These branch into even smaller tubes much like the branches of a tree. What are at the ends of these tubes?

• alveoli

• cells

• diaphragms

• lobus

What would happen if your respiratory system stopped working for a while?

• you would get a transplant

• nothing

• you would die

• hard to get oxygen

Which of the following is affected by the respiratory system?

• yawn

• sneeze

• hiccup

• all of the above

The trachea is a part of the respiratory system. What can the trachea also be called and what is its function?

• windpipe, filters the air we breathe

• tubes; carries air to the lungs

• windpipe, releases air out of the body

• ventricle, carries air to the lungs

What is the scientific term for breathing out air?

• Inhale

• Deflate

• Exhale

• Inflate