How do Lungs Work?

What controls the movement of the lungs?

• The Rib cage 
• Your heart rate 
• The Diaphragm 
• The autonomic nervous system 

From largest to smallest, the airways are structured as follows:

• Trachea, bronchi, bronchioles, alveoli
  
• Alveoli, bronchi, trachea, bronchioles
• Trachea, bronchioles, bronchi, alveoli
• Bronchi, alveolus, bronchioles, trachea

 _____ drives O2 and CO2 across the capillaries and air sacs in the lungs.

• Breathing 
• Inhalation 
• Diffusion 
• Heat 

How do the lungs get rid of all the CO2 they've picked up from the blood?

• They convert it into oxygen 
• They inhale to bring in fresh air 
• They send it back into the bloodstream 
• They compress and exhale 

Pick the true statement:

• If we forget we're breathing our lungs work much better
• The autonomic nervous system makes breathing automatic
  
• If we forget to breathe the brain reminds us
• We have to focus on breathing

Why do you think the body's cells need oxygen?

• So that PHOTOSYNTHESIS can take place
• So that RESPIRATION can take place
  
• So that FERMENTATION can take place
• They just do, man.

Which of the following best describes the texture of the lungs.

• Empty like a balloon 
• Cool like the other side of the pillow 
• Spongy...like a sponge 
• Smart like Mr. Hoegh