What does the respiratory system obtain?

• Carbon Dioxide

• Oxygen

• Nitrogen

• Hydrogen

Where does air enter the body?

• Ears

• Skin

• Nose or Mouth

• Eyes

What is the trachea also known as?

• Windpipe

• Bronchus

• Pharynx

• Alveoli

What are the small tubes that the bronchi subdivide into called?

• Bronchioles

• Alveoli

• Diaphragm

• Sacs

What are the tiny sacs at the end of bronchioles called?

• Lungs

• Alveoli

• Bronchi

• Trachea

What happens in the alveoli?

• Air is filtered

• Carbon Dioxide is absorbed

• Oxygen passes to blood

• Oxygen is stored

What muscle helps us inhale or exhale?

• Trachea

• Lungs

• Heart

• Diaphragm

What does the diaphragm do when it contracts?

• Helps us breathe in

• Makes us cough

• Helps us breathe out

• Stops breathing

What gas do we get rid of through the respiratory system?

• Hydrogen

• Nitrogen

• Carbon Dioxide

• Oxygen

Which part of the respiratory system is divided into bronchi?

• Pharynx

• Diaphragm

• Trachea

• Alveoli