Which is the main organ of gas exchange in the Respiratory System?

• larynx

• heart

• lungs

• brain

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

The passageway that is shared by both the digestive and respiratory system is the....

• larynx
• pharynx
• trachea
• nose

How can you tell if an infant is responsive?

• flick its foot

• tickle it

• throw water on it

• listen for breathing

If something is fully obstructing the airway, what will happen to the infant?

• they won't be able to cry or cough

• they may ask for food

• they'll laugh

• they'll cry

Before assisting anyone in an emergency situation, you first need to

• make sure the scene is safe.

• check for witnesses

• Call 911.

• Look, listen, and feel for breathing.

How do you know a person needs assistance if they are choking?

• They cannot cough

• They cannot speak

• They cannot breath

• all of these

What are the tiny sacs of lung tissue called that specialize in the movement of gases between air and blood.

• lungs

• bronchi

• alveoli

• diaphragm

This is also called the windpipe; a passage through which air moves in the respiratory system.

• trachea

• lungs

• larynx

• bronchi