Medically Reviewed by Minesh Khatri, MD on October 01, 2022
Question 1/8

Your two lungs are the same size.

  • True
  • False
Question 2/8

How many gallons of air do you breathe in each day?

  • About 500
  • Between 2,100 and 2,900
  • More than 2,600
Question 3/8

As you age, your lungs hold less air.

  • True
  • False
Question 4/8

The work of breathing is done by the:

  • Diaphragm
  • Windpipe
  • Arteries
Question 5/8

Your breathing is controlled by your:

  • Lungs
  • Diaphragm
  • Brain
Question 6/8

These are the lungs’ first line of defense against toxins:

  • Tiny hairs
  • Bacteria
  • White blood cells
Question 7/8

Pneumonia is an infection that fills your lungs with:

  • Carbon dioxide
  • Blood
  • Fluid
Question 8/8

You get asthma and bronchitis in your:

  • Airways
  • Lungs
  • Diaphragm