PASS session 2 Crossword

This printable crossword puzzle on the topic of Human Body Systems has 12 clues. Answers range from 4 to 23 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

The amount of air which enters the lungs during normal inhalation at rest.
the additional amount of air that can be expired from the lungs by determined effort after normal expiration
Lung with only 2 lobes
In a healthy person, where is there most resistance to air flow?
What is the main factor that helps to keep small airways (e.g. bronchioles) open (patent)?
Which muscle(s) is/are most important for gentle breathing?
Which measurement represents the total amount of exchangeable air in the lungs?
One of the main respiratory centres in the brain
Fissure in the left lung
thin fluid-filled space between the two pulmonary pleurae (visceral and parietal) of each lung.
the heart's natural pacemaker
remnants of the 3rd lobe in the left lung