Respiratory System Crossword

This printable crossword puzzle on the topic of Human Body Systems has 25 clues. Answers range from 3 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

lack of oxygen in tissues
collapsed lung
where cellular respiration takes place
prevents food from entering airway
keeps alveoli from collapsing
muscle used for breathing
whooping cough
illness caused by smoking
test that measures air volume
windpipe
spaces within the skull
excessive mucus in the lungs
voicebox
number of lobes in the right lung
number of lobes in the left lung
spasm of the diaphragm
air sacs
infection of the larynx, trachea, & bronchial tubes
main organ of respiration
CXR
tubes from the trachea to the lungs
required for cellular respiration
bones that divide nasal cavity
fluid build up in air sacs, caused by altitude sickness
pause in breathing during sleep