The Lungs and Breathing

What is the proper name for the windpipe?

• intestine

• trachea

• oesophagus

• trichonometry

What is the trachea made out of?

• Blood

• Rings of cartilage

• Rings of bone

• Soft tissue

Why does the trachea have rings of cartilage?

• To keep the tube closed

• To support it

• So it closes

• To keep the tube open and therefore always allow air in and out

The trachea branches into two

• bronchi

• bronchioles

• oesophagus

• alveoli

The bronchi branches and branches into smaller and smaller tubes. These smaller tubes are called

• bronchiellies

• bronchi

• bronchiolies

• bronchioles

At the end of the bronchioles are tiny air sacs called

• alvin and the chip munks

• raveoli

• alveoli

• alvardors

In the alveoli oxygen diffuses into the blood and carbon dioxide diffuses out. This is called

• gas exchange

• respiration

• breathing

• circulation

By what process do the gases oxygen and carbon dioxide move in and out of cells?

• magic

• diffusion

• it just happens

• teleportation

The muscle underneath the lungs that moves up and down during breathing is called the...

• diaphragm

• diafram

• diaphram

• dialysis

The definition of breathing is

• A chemical reaction that releases energy in cells.

• Blood moving around the body pushed by the heart

• Oxygen moving into the blood and carbon dioxide moving out

• A physical process that uses muscles to pull air into the lungs and push air out