Grade 4 GIU 2nd Quiz

What is the 1st step in the Respiratory system

• mouth

• nose

• mouth & nose

• the eye

When you breathe "in", you take in

• carbon dioxide

• oxygen

• nitrogen

The Main tube that takes air to your lungs

• bronchi

• bronchioles

• trachea

• air sacs

What is the Scientific Name for Air Sacs

• bronchi

• alveoli

• bronchioles

• trachea

The tubes that lead into each lung

• trachea

• bronchi

• bronchioles

• air sacs

The tiny, thin, hair like tubes in the lungs are

• the trachea

• the bronchi

• the bronchioles

• the alveoli

Where does the oxygen get into the blood?

• the trachea

• the bronchi

• the bronchioles

• the alveoli

How many alveoli are there in BOTH lungs

• 30 thousand

• 600 million

• 60 million

• 60 thousand

Oxygen is transferred in the air sacs THROUGH THE

• capillaries

• bronchi

• Lungs

What are the main organs in the Respiratory System?

• Windpipe

• Nose

• Mouth

• Lungs